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 6 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
344new WordPress flaws this week
390,080entries in the database

7 results

  • Apr 6, 2026A flaw was found in libtheora.CVE-2026-5673 · Other software · Red Hat · reported by Red HatMedium 5.6

    A flaw was found in libtheora. This heap-based out-of-bounds read vulnerability exists within the AVI (Audio Video Interleave) parser, specifically in the avi_parse_input_file() function. A local attacker could exploit this by tricking a user into opening a specially crafted AVI file containing a truncated header sub-chunk. This could lead to a denial-of-service (application crash) or potentially leak sensitive information from the heap.

    Product
    Red Hat Enterprise Linux 10
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Dec 25, 2024oc_huff_tree_unpack in huffdec.c in libtheora in Theora through 1.0 7180717 has an invalid negative left shift.CVE-2024-56431 · Other software · Xiph · reported by MITRECritical 9.8

    oc_huff_tree_unpack in huffdec.c in libtheora in Theora through 1.0 7180717 has an invalid negative left shift. NOTE: this is disputed by third parties because there is no evidence of a security impact, e.g., an application would not crash.

    Product
    Theora
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Aug 8, 2023A Cross Site Scripting (XSS) vulnerability in Adiscon Aiscon LogAnalyzer through 4.1.13 allows a remote attacker to execute arbitrary code via the asktheoracle.CVE-2023-36306 · Other software · Adiscon · reported by MITREMedium 6.1

    A Cross Site Scripting (XSS) vulnerability in Adiscon Aiscon LogAnalyzer through 4.1.13 allows a remote attacker to execute arbitrary code via the asktheoracle.php, details.php, index.php, search.php, export.php, reports.php, and statistics.php components.

    Product
    Loganalyzer
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Nov 11, 2011Double free vulnerability in the Theora decoder in Google Chrome before 15.0.874.120 allows remote attackers to cause a denial of service or possibly have unspeCVE-2011-3892 · Computers, phones & browsers · Google · reported by chrome-cve-admin@google.comHigh 7.5

    Double free vulnerability in the Theora decoder in Google Chrome before 15.0.874.120 allows remote attackers to cause a denial of service or possibly have unspecified other impact via a crafted stream.

    Product
    Chrome
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Dec 17, 2009Integer overflow in libtheora in Xiph.Org Theora before 1.1, as used in Mozilla Firefox 3.5 before 3.5.6 and SeaMonkey before 2.0.1, allows remote attackers to CVE-2009-3389 · Computers, phones & browsers · Mozilla · reported by MITREHigh 9.3

    Integer overflow in libtheora in Xiph.Org Theora before 1.1, as used in Mozilla Firefox 3.5 before 3.5.6 and SeaMonkey before 2.0.1, allows remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code via a video with large dimensions.

    Product
    Firefox
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Oct 29, 2009The oggplay_data_handle_theora_frame function in media/liboggplay/src/liboggplay/oggplay_data.c in liboggplay, as used in Mozilla Firefox 3.5.x before 3.5.4, atCVE-2009-3378 · Computers, phones & browsers · Mozilla · reported by MITREHigh 9.3

    The oggplay_data_handle_theora_frame function in media/liboggplay/src/liboggplay/oggplay_data.c in liboggplay, as used in Mozilla Firefox 3.5.x before 3.5.4, attempts to reuse an earlier frame data structure upon encountering a decoding error for the first frame, which allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) or possibly execute arbitrary code via a crafted .ogg video file.

    Product
    Firefox
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Feb 15, 2008Directory traversal vulnerability in lib/download.php in iTheora 1.0 rc1 allows remote attackers to read arbitrary files via directory traversal sequences in thCVE-2008-0797 · Other software · Itheora · reported by MITREMedium 5

    Directory traversal vulnerability in lib/download.php in iTheora 1.0 rc1 allows remote attackers to read arbitrary files via directory traversal sequences in the url parameter.

    Product
    Itheora
    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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