Vulnerability database
Every flaw the U.S. government’s cybersecurity agency (CISA) has confirmed attackers are using, plus the new WordPress plugin and theme bugs published each day, sorted by what they mean for a small business. We refresh it twice a day. If you see something your website or office runs, tell us.
12 results
Jul 1, 2026Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Wikimedia Foundation SyntaxHighlight_GeSHi.CVE-2026-58030 · Other software · Wikimedia Foundation · reported by c4f26cc8-17ff-4c99-b5e2-38fc1793eaccMedium 5.3
Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Wikimedia Foundation SyntaxHighlight_GeSHi. This vulnerability is associated with program files includes/SyntaxHighlight.Php. This issue affects SyntaxHighlight_GeSHi: from * before 1.46.0, 1.45.4, 1.44.6, 1.43.9.
- Product
- SyntaxHighlight_GeSHi
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordphabricator.wikimedia.org
Apr 10, 2025WP-GeSHi-Highlight — rock-solid syntax highlighting for 259 languages: Processes user-supplied inputCVE-2024-13896 · WordPress plugins & themes · reported by WPScanMedium 6.5
The WP-GeSHi-Highlight — rock-solid syntax highlighting for 259 languages WordPress plugin through 1.4.3 processes user-supplied input as a regular expression via the wp_geshi_filter_replace_code() function, which could lead to Regular Expression Denial of Service (ReDoS) issue
- Product
- WP-GeSHi-Highlight — rock-solid syntax highlighting for 259 languages
- Affected
- up to 1.4.3
- What to do
- Affects up to 1.4.3. Update WP-GeSHi-Highlight — rock-solid syntax highlighting for 259 languages to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
Mar 9, 2025A vulnerability, which was classified as problematic, has been found in GeSHi up to 1.0.9.1.CVE-2025-2123 · Other software · Qbnz · reported by VulDBMedium 5.1
A vulnerability, which was classified as problematic, has been found in GeSHi up to 1.0.9.1. Affected by this issue is the function get_var of the file /contrib/cssgen.php of the component CSS Handler. The manipulation of the argument default-styles/keywords-1/keywords-2/keywords-3/keywords-4/comments leads to cross site scripting. The attack may be launched remotely. The exploit has been disclosed to the public and may be used.
- Product
- Geshi
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Sep 1, 2015Cross-site scripting (XSS) vulnerability in contrib/cssgen.php in the GeSHi, as used in the SyntaxHighlight_GeSHi extension and MediaWiki before 1.23.10, 1.24.xCVE-2015-6734 · Other software · Mediawiki · reported by MITREMedium 4.3
Cross-site scripting (XSS) vulnerability in contrib/cssgen.php in the GeSHi, as used in the SyntaxHighlight_GeSHi extension and MediaWiki before 1.23.10, 1.24.x before 1.24.3, and 1.25.x before 1.25.2, allows remote attackers to inject arbitrary web script or HTML via unspecified vectors.
- Product
- Mediawiki
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordlists.fedoraproject.orgopenwall.com
Sep 1, 2015GeSHi, as used in the SyntaxHighlight_GeSHi extension and MediaWiki before 1.23.10, 1.24.x before 1.24.3, and 1.25.x before 1.25.2, allows remote attackers to cCVE-2015-6733 · Other software · Mediawiki · reported by MITREMedium 5
GeSHi, as used in the SyntaxHighlight_GeSHi extension and MediaWiki before 1.23.10, 1.24.x before 1.24.3, and 1.25.x before 1.25.2, allows remote attackers to cause a denial of service (resource consumption) via unspecified vectors.
- Product
- Mediawiki
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordlists.fedoraproject.orgopenwall.com
Jun 13, 2014Cross-site scripting (XSS) vulnerability in contrib/langwiz.php in GeSHi before 1.0.8.11 allows remote attackers to inject arbitrary web script or HTML via unspCVE-2012-3522 · Other software · Qbnz · reported by Red HatMedium 4.3
Cross-site scripting (XSS) vulnerability in contrib/langwiz.php in GeSHi before 1.0.8.11 allows remote attackers to inject arbitrary web script or HTML via unspecified vectors.
- Product
- Geshi
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordlists.fedoraproject.orglists.fedoraproject.org
Jun 13, 2014Multiple directory traversal vulnerabilities in the cssgen contrib module in GeSHi before 1.0.8.11 allow remote attackers to read arbitrary files via a ..CVE-2012-3521 · Other software · Qbnz · reported by Red HatMedium 5
Multiple directory traversal vulnerabilities in the cssgen contrib module in GeSHi before 1.0.8.11 allow remote attackers to read arbitrary files via a .. (dot dot) in the (1) geshi-path or (2) geshi-lang-path parameter.
- Product
- Geshi
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordlists.fedoraproject.orglists.fedoraproject.org
Oct 11, 2013Cross-site scripting (XSS) vulnerability in contrib/example.php in the SyntaxHighlight GeSHi extension for MediaWiki, possibly as downloaded before September 20CVE-2013-4305 · Other software · Mediawiki · reported by Red HatMedium 4.3
Cross-site scripting (XSS) vulnerability in contrib/example.php in the SyntaxHighlight GeSHi extension for MediaWiki, possibly as downloaded before September 2013, allows remote attackers to inject arbitrary web script or HTML via the PATH_INFO.
- Product
- Mediawiki
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordlists.wikimedia.orgosvdb.org
Mar 23, 2009Mozilla Firefox 3.0.7 on Windows 7 allows remote attackers to execute arbitrary code via unknown vectors related to the _moveToEdgeShift XUL tree method, which CVE-2009-1044 · Computers, phones & browsers · Mozilla · reported by MITREHigh 9.3
Mozilla Firefox 3.0.7 on Windows 7 allows remote attackers to execute arbitrary code via unknown vectors related to the _moveToEdgeShift XUL tree method, which triggers garbage collection on objects that are still in use, as demonstrated by Nils during a PWN2OWN competition at CanSecWest 2009.
- Product
- Firefox
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordblogs.zdnet.comblogs.zdnet.com
Nov 20, 2008The set_language_path function in geshi.php in Generic Syntax Highlighter (GeSHi) before 1.0.8.1 might allow remote attackers to conduct file inclusion attacks CVE-2008-5186 · Other software · Geshi · reported by MITREHigh 7.5
The set_language_path function in geshi.php in Generic Syntax Highlighter (GeSHi) before 1.0.8.1 might allow remote attackers to conduct file inclusion attacks via crafted inputs that influence the default language path ($path variable). NOTE: this issue has been disputed by a vendor, stating that only a static value is used, so this is not a vulnerability in GeSHi. Separate CVE identifiers would be created for web applications that integrate GeSHi in a way that allows control of the default language path
- Product
- Geshi
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Nov 20, 2008The highlighting functionality in geshi.php in GeSHi before 1.0.8 allows remote attackers to cause a denial of service (infinite loop) via an XML sequence contaCVE-2008-5185 · Other software · Geshi · reported by MITREMedium 5
The highlighting functionality in geshi.php in GeSHi before 1.0.8 allows remote attackers to cause a denial of service (infinite loop) via an XML sequence containing an opening delimiter without a closing delimiter, as demonstrated using "<".
- Product
- Geshi
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordgeshi.svn.sourceforge.netopenwall.com
Sep 27, 2005contrib/example.php in GeSHi before 1.0.7.3 allows remote attackers to read arbitrary files via the language field without a source field set.CVE-2005-3080 · Other software · Geshi · reported by MITREMedium 5
contrib/example.php in GeSHi before 1.0.7.3 allows remote attackers to read arbitrary files via the language field without a source field set.
- Product
- Geshi
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordsourceforge.netsecurityfocus.com
Where this comes from: the exploited list is CISA’s Known Exploited Vulnerabilities catalog. Everything else is the whole National Vulnerability Database, where each record is published by the team that found the bug (Wordfence, Patchstack, WPScan, the vendors themselves and others); we show who. Exploit odds are FIRST’s EPSS, updated daily. Titles and categories are ours, so check the linked record before acting on a detail. For a write-up of the big ones, see our advisories. Every vendor, and every WordPress plugin and theme with a recorded flaw, also has its own page. All of it is free to reuse as JSON, CSV or RSS.
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