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PHP CVEs

Vulnerabilities in the PHP language itself, and which PHP versions they affect.

PHP CVEs stored760
Affected version records16,617
Newest source updateNovember 5, 2026
CVE-2007-1380 March 10, 2007
The php_binary serialization handler in the session extension in PHP before 4.4.5, and 5.x before 5.2.1, allows context-dependent attackers to obtain sensitive information (memory contents) via a serialized variable entry with a large length… Full details
MEDIUM 5
CVE-2007-1379 March 10, 2007
The ovrimos_close function in the Ovrimos extension for PHP before 4.4.5 can trigger efree of an arbitrary address, which might allow context-dependent attackers to execute arbitrary code. Full details
MEDIUM 5.1
CVE-2007-1378 March 10, 2007
The ovrimos_longreadlen function in the Ovrimos extension for PHP before 4.4.5 allows context-dependent attackers to write to arbitrary memory locations via the result_id and length arguments. Full details
MEDIUM 5.1
CVE-2007-1376 March 10, 2007
The shmop functions in PHP before 4.4.5, and before 5.2.1 in the 5.x series, do not verify that their arguments correspond to a shmop resource, which allows context-dependent attackers to read and write arbitrary… Full details
HIGH 7.5
CVE-2007-1375 March 10, 2007
Integer overflow in the substr_compare function in PHP 5.2.1 and earlier allows context-dependent attackers to read sensitive memory via a large value in the length argument, a different vulnerability than CVE-2006-1991. Full details
MEDIUM 5
CVE-2007-1287 March 6, 2007
A regression error in the phpinfo function in PHP 4.4.3 to 4.4.6, and PHP 6.0 in CVS, allows remote attackers to conduct cross-site scripting (XSS) attacks via GET, POST, or COOKIE array values, which… Full details
MEDIUM 4.3
CVE-2007-1286 March 6, 2007
Integer overflow in PHP 4.4.4 and earlier allows remote context-dependent attackers to execute arbitrary code via a long string to the unserialize function, which triggers the overflow in the ZVAL reference counter. Full details
MEDIUM 6.8
CVE-2007-1285 March 6, 2007
The Zend Engine in PHP 4.x before 4.4.7, and 5.x before 5.2.2, allows remote attackers to cause a denial of service (stack exhaustion and PHP crash) via deeply nested arrays, which trigger deep recursion… Full details
HIGH 7.5
CVE-2007-0988 February 20, 2007
The zend_hash_init function in PHP 5 before 5.2.1 and PHP 4 before 4.4.5, when running on a 64-bit platform, allows context-dependent attackers to cause a denial of service (infinite loop) by unserializing certain integer… Full details
MEDIUM 4.3
CVE-2007-0911 February 13, 2007
Off-by-one error in the str_ireplace function in PHP 5.2.1 might allow context-dependent attackers to cause a denial of service (crash). Full details
HIGH 7.8
CVE-2007-0910 February 13, 2007
Unspecified vulnerability in PHP before 5.2.1 allows attackers to "clobber" certain super-global variables via unspecified vectors. Full details
HIGH 10
CVE-2007-0909 February 13, 2007
Multiple format string vulnerabilities in PHP before 5.2.1 might allow attackers to execute arbitrary code via format string specifiers to (1) all of the *print functions on 64-bit systems, and (2) the odbc_result_all function. Full details
HIGH 7.5
CVE-2007-0908 February 13, 2007
The WDDX deserializer in the wddx extension in PHP 5 before 5.2.1 and PHP 4 before 4.4.5 does not properly initialize the key_length variable for a numerical key, which allows context-dependent attackers to read… Full details
MEDIUM 5
CVE-2007-0907 February 13, 2007
Buffer underflow in PHP before 5.2.1 allows attackers to cause a denial of service via unspecified vectors involving the sapi_header_op function. Full details
MEDIUM 5
CVE-2007-0906 February 13, 2007
Multiple buffer overflows in PHP before 5.2.1 allow attackers to cause a denial of service and possibly execute arbitrary code via unspecified vectors in the (1) session, (2) zip, (3) imap, and (4) sqlite… Full details
HIGH 7.5
CVE-2007-0905 February 13, 2007
PHP before 5.2.1 allows attackers to bypass safe_mode and open_basedir restrictions via unspecified vectors in the session extension. NOTE: it is possible that this issue is a duplicate of CVE-2006-6383. Full details
HIGH 7.5
CVE-2007-0455 January 30, 2007
Buffer overflow in the gdImageStringFTEx function in gdft.c in GD Graphics Library 2.0.33 and earlier allows remote attackers to cause a denial of service (application crash) and possibly execute arbitrary code via a crafted… Full details
HIGH 7.5
CVE-2006-6383 December 10, 2006
PHP 5.2.0 and 4.4 allows local users to bypass safe_mode and open_basedir restrictions via a malicious path and a null byte before a ";" in a session_save_path argument, followed by an allowed path, which… Full details
MEDIUM 4.6
CVE-2006-5706 November 4, 2006
Unspecified vulnerabilities in PHP, probably before 5.2.0, allow local users to bypass open_basedir restrictions and perform unspecified actions via unspecified vectors involving the (1) chdir and (2) tempnam functions. NOTE: the tempnam vector might… Full details
HIGH 7.2
CVE-2006-5465 November 4, 2006
Buffer overflow in PHP before 5.2.0 allows remote attackers to execute arbitrary code via crafted UTF-8 inputs to the (1) htmlentities or (2) htmlspecialchars functions. Full details
HIGH 7.5
CVE-2006-5178 October 10, 2006
Race condition in the symlink function in PHP 5.1.6 and earlier allows local users to bypass the open_basedir restriction by using a combination of symlink, mkdir, and unlink functions to change the file path… Full details
MEDIUM 6.2
CVE-2006-4812 October 10, 2006
Integer overflow in PHP 5 up to 5.1.6 and 4 before 4.3.0 allows remote attackers to execute arbitrary code via an argument to the unserialize PHP function with a large value for the number… Full details
HIGH 10
CVE-2006-4625 September 12, 2006
PHP 4.x up to 4.4.4 and PHP 5 up to 5.1.6 allows local users to bypass certain Apache HTTP Server httpd.conf options, such as safe_mode and open_basedir, via the ini_restore function, which resets the… Full details
LOW 3.6
CVE-2006-4486 August 31, 2006
Integer overflow in memory allocation routines in PHP before 5.1.6, when running on a 64-bit system, allows context-dependent attackers to bypass the memory_limit restriction. Full details
LOW 2.6
CVE-2006-4485 August 31, 2006
The stripos function in PHP before 5.1.5 has unknown impact and attack vectors related to an out-of-bounds read. Full details
HIGH 10
CVE-2006-4484 August 31, 2006
Buffer overflow in the LWZReadByte_ function in ext/gd/libgd/gd_gif_in.c in the GD extension in PHP before 5.1.5 allows remote attackers to have an unknown impact via a GIF file with input_code_size greater than MAX_LWZ_BITS, which… Full details
LOW 2.6
CVE-2006-4483 August 31, 2006
The cURL extension files (1) ext/curl/interface.c and (2) ext/curl/streams.c in PHP before 5.1.5 permit the CURLOPT_FOLLOWLOCATION option when open_basedir or safe_mode is enabled, which allows attackers to perform unauthorized actions, possibly related to the… Full details
HIGH 9.3
CVE-2006-4482 August 31, 2006
Multiple heap-based buffer overflows in the (1) str_repeat and (2) wordwrap functions in ext/standard/string.c in PHP before 5.1.5, when used on a 64-bit system, have unspecified impact and attack vectors, a different vulnerability than… Full details
HIGH 9.3
CVE-2006-4481 August 31, 2006
The (1) file_exists and (2) imap_reopen functions in PHP before 5.1.5 do not check for the safe_mode and open_basedir settings, which allows local users to bypass the settings. NOTE: the error_log function is covered… Full details
HIGH 7.2
CVE-2006-4433 August 29, 2006
PHP before 4.4.3 and 5.x before 5.1.4 does not limit the character set of the session identifier (PHPSESSID) for third party session handlers, which might make it easier for remote attackers to exploit other… Full details
HIGH 7.5
CVE-2006-4023 August 9, 2006
The ip2long function in PHP 5.1.4 and earlier may incorrectly validate an arbitrary string and return a valid network IP address, which allows remote attackers to obtain network information and facilitate other attacks, as… Full details
MEDIUM 5
CVE-2006-4020 August 8, 2006
scanf.c in PHP 5.1.4 and earlier, and 4.4.3 and earlier, allows context-dependent attackers to execute arbitrary code via a sscanf PHP function call that performs argument swapping, which increments an index past the end… Full details
MEDIUM 4.6
CVE-2006-3011 June 26, 2006
The error_log function in basic_functions.c in PHP before 4.4.4 and 5.x before 5.1.5 allows local users to bypass safe mode and open_basedir restrictions via a "php://" or other scheme in the third argument, which… Full details
MEDIUM 4.6
CVE-2006-3017 June 14, 2006
zend_hash_del_key_or_index in zend_hash.c in PHP before 4.4.3 and 5.x before 5.1.3 can cause zend_hash_del to delete the wrong element, which prevents a variable from being unset even when the PHP unset function is called,… Full details
HIGH 9.3
CVE-2006-2660 June 13, 2006
Buffer consumption vulnerability in the tempnam function in PHP 5.1.4 and 4.x before 4.4.3 allows local users to bypass restrictions and create PHP files with fixed names in other directories via a pathname argument… Full details
LOW 2.1
CVE-2006-2563 May 29, 2006
The cURL library (libcurl) in PHP 4.4.2 and 5.1.4 allows attackers to bypass safe mode and read files via a file:// request containing null characters. Full details
LOW 2.1
CVE-2006-1991 April 24, 2006
The substr_compare function in string.c in PHP 5.1.2 allows context-dependent attackers to cause a denial of service (memory access violation) via an out-of-bounds offset argument. Full details
MEDIUM 6.4
CVE-2006-1990 April 24, 2006
Integer overflow in the wordwrap function in string.c in PHP 4.4.2 and 5.1.2 might allow context-dependent attackers to execute arbitrary code via certain long arguments that cause a small buffer to be allocated, which… Full details
MEDIUM 5
CVE-2006-1549 April 10, 2006
PHP 4.4.2 and 5.1.2 allows local users to cause a crash (segmentation fault) by defining and executing a recursive function. NOTE: it has been reported by a reliable third party that some later versions… Full details
LOW 2.1
CVE-2006-1608 April 10, 2006
The copy function in file.c in PHP 4.4.2 and 5.1.2 allows local users to bypass safe mode and read arbitrary files via a source argument containing a compress.zlib:// URI. Full details
LOW 2.1
CVE-2006-1494 April 10, 2006
Directory traversal vulnerability in file.c in PHP 4.4.2 and 5.1.2 allows local users to bypass open_basedir restrictions allows remote attackers to create files in arbitrary directories via the tempnam function. Full details
LOW 2.6
CVE-2006-0996 April 10, 2006
Cross-site scripting (XSS) vulnerability in phpinfo (info.c) in PHP 5.1.2 and 4.4.2 allows remote attackers to inject arbitrary web script or HTML via long array variables, including (1) a large number of dimensions or… Full details
MEDIUM 4.3
CVE-2006-1490 March 29, 2006
PHP before 5.1.3-RC1 might allow remote attackers to obtain portions of memory via crafted binary data sent to a script that processes user input in the html_entity_decode function and sends the encoded results back… Full details
MEDIUM 5
CVE-2006-1017 March 7, 2006
The c-client library 2000, 2001, or 2004 for PHP before 4.4.4 and 5.x before 5.1.5 do not check the (1) safe_mode or (2) open_basedir functions, and when used in applications that accept user-controlled input… Full details
HIGH 9.3
CVE-2006-1015 March 7, 2006
Argument injection vulnerability in certain PHP 3.x, 4.x, and 5.x applications, when used with sendmail and when accepting remote input for the additional_parameters argument to the mail function, allows remote attackers to read and… Full details
MEDIUM 6.4
CVE-2006-1014 March 7, 2006
Argument injection vulnerability in certain PHP 4.x and 5.x applications, when used with sendmail and when accepting remote input for the additional_parameters argument to the mb_send_mail function, allows context-dependent attackers to read and create… Full details
LOW 3.2
CVE-2006-0208 January 13, 2006
Multiple cross-site scripting (XSS) vulnerabilities in PHP 4.4.1 and 5.1.1, when display_errors and html_errors are on, allow remote attackers to inject arbitrary web script or HTML via inputs to PHP applications that are not… Full details
LOW 2.6
CVE-2006-0207 January 13, 2006
Multiple HTTP response splitting vulnerabilities in PHP 5.1.1 allow remote attackers to inject arbitrary HTTP headers via a crafted Set-Cookie header, related to the (1) session extension (aka ext/session) and the (2) header function. Full details
MEDIUM 5
CVE-2006-0200 January 13, 2006
Format string vulnerability in the error-reporting feature in the mysqli extension in PHP 5.1.0 and 5.1.1 might allow remote attackers to execute arbitrary code via format string specifiers in MySQL error messages. Full details
HIGH 9.3
CVE-2006-0097 January 6, 2006
Stack-based buffer overflow in the create_named_pipe function in libmysql.c in PHP 4.3.10 and 4.4.x before 4.4.3 for Windows allows attackers to execute arbitrary code via a long (1) arg_host or (2) arg_unix_socket argument, as… Full details
HIGH 7.5