Critical security advisoryCriticalFlagged by our vulnerability database: PHP2Shell is on CISA’s exploited list. Most WordPress hosting runs PHP. See if your site is affectedFlagged by our vulnerability database: PHP2Shell is being exploited. DetailsExploited: PHP2Shell. Check your site
HuttenlocherTechnologies
Updated 8 h ago

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.

1,762exploited flaws on CISA’s list
34added in the last 30 days
343new WordPress flaws this week
390,080entries in the database

15 results

  • Aug 24, 2026NLTK versions before 3.10.3 fail to use validated absolute paths when invoking the Graphviz dot binary in dependencygraph.dot2img and AlignedSent._repr_svg_, alCVE-2026-78680 · Other software · nltk · reported by VulnCheckHigh 8.5

    NLTK versions before 3.10.3 fail to use validated absolute paths when invoking the Graphviz dot binary in dependencygraph.dot2img and AlignedSent._repr_svg_, allowing attackers to execute arbitrary code by placing a malicious dot binary in the search path or current working directory. Attackers can exploit bare-name binary resolution on Windows via the current working directory or on Unix-like systems via relative PATH entries to execute their binary instead of the legitimate Graphviz tool.

    Product
    nltk
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Sep 5, 2025WP-GraphViz: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')CVE-2025-58870 · WordPress plugins & themes · reported by PatchstackMedium 6.5

    Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in DeBAAT WP-GraphViz wp-graphviz allows DOM-Based XSS.This issue affects WP-GraphViz: from n/a through <= 1.5.1.

    Product
    WP-GraphViz
    Affected
    up to 1.5.1
    What to do
    Affects up to 1.5.1. Update WP-GraphViz to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
  • Mar 31, 2024A vulnerability was found in chrisy TFO Graphviz Plugin up to 1.9 on WordPress and classified as problematic.CVE-2015-10131 · WordPress plugins & themes · reported by VulDBLow 3.5

    A vulnerability was found in chrisy TFO Graphviz Plugin up to 1.9 on WordPress and classified as problematic. Affected by this issue is the function admin_page_load/admin_page of the file tfo-graphviz-admin.php. The manipulation leads to cross site scripting. The attack may be launched remotely. Upgrading to version 1.10 is able to address this issue. The name of the patch is 594c953a345f79e26003772093b0caafc14b92c2. It is recommended to upgrade the affected component. The identifier of this vulnerability is VDB-258620.

    Product
    chrisy TFO Graphviz
    Affected
    up to 1.9
    What to do
    Affects up to 1.9. Update chrisy TFO Graphviz to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
  • Feb 2, 2024Graphviz 2.36.0 through 9.x before 10.0.1 has an out-of-bounds read via a crafted config6a file.CVE-2023-46045 · Other software · Graphviz · reported by MITREHigh 7.8

    Graphviz 2.36.0 through 9.x before 10.0.1 has an out-of-bounds read via a crafted config6a file. NOTE: exploitability may be uncommon because this file is typically owned by root.

    Product
    Graphviz
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Apr 29, 2021Buffer Overflow in Graphviz Graph Visualization Tools from commit ID f8b9e035 and earlier allows remote attackers to execute arbitrary code or cause a denial ofCVE-2020-18032 · Other software · Graphviz · reported by MITREHigh 7.8

    Buffer Overflow in Graphviz Graph Visualization Tools from commit ID f8b9e035 and earlier allows remote attackers to execute arbitrary code or cause a denial of service (application crash) by loading a crafted file into the "lib/common/shapes.c" component.

    Product
    Graphviz
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Apr 8, 2019The agroot() function in cgraph\obj.c in libcgraph.a in Graphviz 2.39.20160612.1140 has a NULL pointer dereference, as demonstrated by graphml2gv.CVE-2019-11023 · Other software · Graphviz · reported by MITREHigh 8.8

    The agroot() function in cgraph\obj.c in libcgraph.a in Graphviz 2.39.20160612.1140 has a NULL pointer dereference, as demonstrated by graphml2gv.

    Product
    Graphviz
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Mar 21, 2019An issue was discovered in lib\cdt\dttree.c in libcdt.a in graphviz 2.40.1.CVE-2019-9904 · Other software · Graphviz · reported by MITREMedium 6.5

    An issue was discovered in lib\cdt\dttree.c in libcdt.a in graphviz 2.40.1. Stack consumption occurs because of recursive agclose calls in lib\cgraph\graph.c in libcgraph.a, related to agfstsubg in lib\cgraph\subg.c.

    Product
    Graphviz
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • May 30, 2018NULL pointer dereference vulnerability in the rebuild_vlists function in lib/dotgen/conc.c in the dotgen library in Graphviz 2.40.1 allows remote attackers to cCVE-2018-10196 · Other software · Graphviz · reported by MITREMedium 5.5

    NULL pointer dereference vulnerability in the rebuild_vlists function in lib/dotgen/conc.c in the dotgen library in Graphviz 2.40.1 allows remote attackers to cause a denial of service (application crash) via a crafted file.

    Product
    Graphviz
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Aug 7, 2017Stack-based buffer overflow in the "yyerror" function in Graphviz 2.34.0 allows remote attackers to execute arbitrary code or cause a denial of service (applicaCVE-2014-1235 · Other software · Graphviz · reported by MITREHigh 7.8

    Stack-based buffer overflow in the "yyerror" function in Graphviz 2.34.0 allows remote attackers to execute arbitrary code or cause a denial of service (application crash) via a crafted file. NOTE: This vulnerability exists due to an incomplete fix for CVE-2014-0978.

    Product
    Graphviz
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Dec 3, 2014Format string vulnerability in the yyerror function in lib/cgraph/scan.l in Graphviz allows remote attackers to have unspecified impact via format string specifCVE-2014-9157 · Other software · Debian · reported by MITREHigh 7.5

    Format string vulnerability in the yyerror function in lib/cgraph/scan.l in Graphviz allows remote attackers to have unspecified impact via format string specifiers in unknown vectors, which are not properly handled in an error string.

    Product
    Debian Linux
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Jan 10, 2014Stack-based buffer overflow in the yyerror function in lib/cgraph/scan.l in Graphviz 2.34.0 allows remote attackers to have unspecified impact via a long line iCVE-2014-0978 · Other software · Graphviz · reported by MITREHigh 9.3

    Stack-based buffer overflow in the yyerror function in lib/cgraph/scan.l in Graphviz 2.34.0 allows remote attackers to have unspecified impact via a long line in a dot file.

    Product
    Graphviz
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Jan 10, 2014Stack-based buffer overflow in the chkNum function in lib/cgraph/scan.l in Graphviz 2.34.0 allows remote attackers to have unspecified impact via vectors relateCVE-2014-1236 · Other software · Graphviz · reported by MITREHigh 10

    Stack-based buffer overflow in the chkNum function in lib/cgraph/scan.l in Graphviz 2.34.0 allows remote attackers to have unspecified impact via vectors related to a "badly formed number" and a "long digit list."

    Product
    Graphviz
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Aug 24, 2013Buffer overflow in the ToDot method in the WINGRAPHVIZLib.NEATO ActiveX control in WinGraphviz.dll in StarUML allows remote attackers to execute arbitrary code CVE-2013-5578 · Other software · Staruml · reported by MITREHigh 9.3

    Buffer overflow in the ToDot method in the WINGRAPHVIZLib.NEATO ActiveX control in WinGraphviz.dll in StarUML allows remote attackers to execute arbitrary code via a long argument.

    Product
    Staruml
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Oct 14, 2008Stack-based buffer overflow in the push_subg function in parser.y (lib/graph/parser.c) in Graphviz 2.20.2, and possibly earlier versions, allows user-assisted rCVE-2008-4555 · Other software · Graphviz · reported by MITREHigh 8.5

    Stack-based buffer overflow in the push_subg function in parser.y (lib/graph/parser.c) in Graphviz 2.20.2, and possibly earlier versions, allows user-assisted remote attackers to cause a denial of service (memory corruption) or execute arbitrary code via a DOT file with a large number of Agraph_t elements.

    Product
    Graphviz
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Dec 31, 2005graphviz before 2.2.1 allows local users to overwrite arbitrary files via a symlink attack on temporary files.CVE-2005-4803 · Other software · Graphviz · reported by MITRELow 3.6

    graphviz before 2.2.1 allows local users to overwrite arbitrary files via a symlink attack on temporary files. NOTE: this issue was originally associated with a different CVE identifier, CVE-2005-2965, which had been used for multiple different issues. This is the correct identifier.

    Product
    Graphviz
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.

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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