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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
303new WordPress flaws this week
390,007entries in the database

35 results

  • Oct 14, 2025A flaw was found in the exsltFuncResultComp() function of libxslt, which handles EXSLT <func:result> elements during stylesheet parsing.CVE-2025-11731 · Other software · Red Hat · reported by Red HatLow 3.1

    A flaw was found in the exsltFuncResultComp() function of libxslt, which handles EXSLT <func:result> elements during stylesheet parsing. Due to improper type handling, the function may treat an XML document node as a regular XML element node, resulting in a type confusion. This can cause unexpected memory reads and potential crashes. While difficult to exploit, the flaw could lead to application instability or denial of service.

    Product
    Red Hat Hardened Images
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Sep 25, 2025A use-after-free vulnerability was found in libxslt while parsing xsl nodes that may lead to the dereference of expired pointers and application crash.CVE-2025-10911 · Other software · Red Hat · reported by Red HatMedium 5.5

    A use-after-free vulnerability was found in libxslt while parsing xsl nodes that may lead to the dereference of expired pointers and application crash.

    Product
    Red Hat Enterprise Linux 10
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Jul 10, 2025A flaw was found in libxslt where the attribute type, atype, flags are modified in a way that corrupts internal memory management.CVE-2025-7425 · Other software · GNOME · reported by Red HatHigh 7.8

    A flaw was found in libxslt where the attribute type, atype, flags are modified in a way that corrupts internal memory management. When XSLT functions, such as the key() process, result in tree fragments, this corruption prevents the proper cleanup of ID attributes. As a result, the system may access freed memory, causing crashes or enabling attackers to trigger heap corruption.

    Product
    libxml2
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Jul 10, 2025A flaw was found in the libxslt library.CVE-2025-7424 · Other software · GNOME · reported by Red HatHigh 7.5

    A flaw was found in the libxslt library. The same memory field, psvi, is used for both stylesheet and input data, which can lead to type confusion during XML transformations. This vulnerability allows an attacker to crash the application or corrupt memory. In some cases, it may lead to denial of service or unexpected behavior.

    Product
    libxslt
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Mar 13, 2025numbers.c in libxslt before 1.1.43 has a use-after-free because, in nested XPath evaluations, an XPath context node can be modified but never restored.CVE-2025-24855 · Other software · xmlsoft · reported by MITREHigh 7.8

    numbers.c in libxslt before 1.1.43 has a use-after-free because, in nested XPath evaluations, an XPath context node can be modified but never restored. This is related to xsltNumberFormatGetValue, xsltEvalXPathPredicate, xsltEvalXPathStringNs, and xsltComputeSortResultInternal.

    Product
    libxslt
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Mar 13, 2025xsltGetInheritedNsList in libxslt before 1.1.43 has a use-after-free issue related to exclusion of result prefixes.CVE-2024-55549 · Other software · xmlsoft · reported by MITREHigh 7.8

    xsltGetInheritedNsList in libxslt before 1.1.43 has a use-after-free issue related to exclusion of result prefixes.

    Product
    libxslt
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Dec 10, 2019Type confusion in xsltNumberFormatGetMultipleLevel prior to libxslt 1.1.33 could allow attackers to potentially exploit heap corruption via crafted XML data.CVE-2019-5815 · Computers, phones & browsers · Google · reported by chrome-cve-admin@google.comHigh 7.5

    Type confusion in xsltNumberFormatGetMultipleLevel prior to libxslt 1.1.33 could allow attackers to potentially exploit heap corruption via crafted XML data.

    Product
    Chrome
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Oct 18, 2019In xsltCopyText in transform.c in libxslt 1.1.33, a pointer variable isn't reset under certain circumstances.CVE-2019-18197 · Other software · Xmlsoft · reported by MITREHigh 7.5

    In xsltCopyText in transform.c in libxslt 1.1.33, a pointer variable isn't reset under certain circumstances. If the relevant memory area happened to be freed and reused in a certain way, a bounds check could fail and memory outside a buffer could be written to, or uninitialized data could be disclosed.

    Product
    Libxslt
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Jun 30, 2019In numbers.c in libxslt 1.1.33, a type holding grouping characters of an xsl:number instruction was too narrow and an invalid character/length combination couldCVE-2019-13118 · Other software · Xmlsoft · reported by MITREMedium 5.3

    In numbers.c in libxslt 1.1.33, a type holding grouping characters of an xsl:number instruction was too narrow and an invalid character/length combination could be passed to xsltNumberFormatDecimal, leading to a read of uninitialized stack data.

    Product
    Libxslt
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Jun 30, 2019In numbers.c in libxslt 1.1.33, an xsl:number with certain format strings could lead to a uninitialized read in xsltNumberFormatInsertNumbers.CVE-2019-13117 · Other software · Xmlsoft · reported by MITREMedium 5.3

    In numbers.c in libxslt 1.1.33, an xsl:number with certain format strings could lead to a uninitialized read in xsltNumberFormatInsertNumbers. This could allow an attacker to discern whether a byte on the stack contains the characters A, a, I, i, or 0, or any other character.

    Product
    Libxslt
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Apr 10, 2019libxslt through 1.1.33 allows bypass of a protection mechanism because callers of xsltCheckRead and xsltCheckWrite permit access even upon receiving a -1 error CVE-2019-11068 · Other software · Xmlsoft · reported by MITRECritical 9.8

    libxslt through 1.1.33 allows bypass of a protection mechanism because callers of xsltCheckRead and xsltCheckWrite permit access even upon receiving a -1 error code. xsltCheckRead can return -1 for a crafted URL that is not actually invalid and is subsequently loaded.

    Product
    Libxslt
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Apr 24, 2017The xsltAddTextString function in transform.c in libxslt 1.1.29, as used in Blink in Google Chrome prior to 57.0.2987.98 for Mac, Windows, and Linux and 57.0.29CVE-2017-5029 · Computers, phones & browsers · Google · reported by chrome-cve-admin@google.comHigh 8.8

    The xsltAddTextString function in transform.c in libxslt 1.1.29, as used in Blink in Google Chrome prior to 57.0.2987.98 for Mac, Windows, and Linux and 57.0.2987.108 for Android, lacked a check for integer overflow during a size calculation, which allowed a remote attacker to perform an out of bounds memory write via a crafted HTML page.

    Product
    Chrome
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Apr 5, 2017In libxslt 1.1.29 and earlier, the EXSLT math.random function was not initialized with a random seed during startup, which could cause usage of this function toCVE-2015-9019 · Other software · Xmlsoft · reported by MITREMedium 5.3

    In libxslt 1.1.29 and earlier, the EXSLT math.random function was not initialized with a random seed during startup, which could cause usage of this function to produce predictable outputs.

    Product
    Libxslt
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Sep 25, 2016libxslt in Apple iOS before 10, OS X before 10.12, tvOS before 10, and watchOS before 3 allows remote attackers to execute arbitrary code or cause a denial of sCVE-2016-4738 · Computers, phones & browsers · Apple · reported by product-security@apple.comHigh 8.8

    libxslt in Apple iOS before 10, OS X before 10.12, tvOS before 10, and watchOS before 3 allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted web site.

    Product
    Iphone OS
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Jul 21, 2016libxslt in Apple iOS before 9.3.3, OS X before 10.11.6, iTunes before 12.4.2 on Windows, iCloud before 5.2.1 on Windows, tvOS before 9.2.2, and watchOS before 2CVE-2016-4610 · Other software · Xmlsoft · reported by product-security@apple.comCritical 9.8

    libxslt in Apple iOS before 9.3.3, OS X before 10.11.6, iTunes before 12.4.2 on Windows, iCloud before 5.2.1 on Windows, tvOS before 9.2.2, and watchOS before 2.2.2 allows remote attackers to cause a denial of service (memory corruption) or possibly have unspecified other impact via unknown vectors, a different vulnerability than CVE-2016-4607, CVE-2016-4608, CVE-2016-4609, and CVE-2016-4612.

    Product
    Libxslt
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Jul 21, 2016libxslt in Apple iOS before 9.3.3, OS X before 10.11.6, iTunes before 12.4.2 on Windows, iCloud before 5.2.1 on Windows, tvOS before 9.2.2, and watchOS before 2CVE-2016-4609 · Other software · Xmlsoft · reported by product-security@apple.comCritical 9.8

    libxslt in Apple iOS before 9.3.3, OS X before 10.11.6, iTunes before 12.4.2 on Windows, iCloud before 5.2.1 on Windows, tvOS before 9.2.2, and watchOS before 2.2.2 allows remote attackers to cause a denial of service (memory corruption) or possibly have unspecified other impact via unknown vectors, a different vulnerability than CVE-2016-4607, CVE-2016-4608, CVE-2016-4610, and CVE-2016-4612.

    Product
    Libxslt
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Jul 21, 2016libxslt in Apple iOS before 9.3.3, OS X before 10.11.6, iTunes before 12.4.2 on Windows, iCloud before 5.2.1 on Windows, tvOS before 9.2.2, and watchOS before 2CVE-2016-4608 · Other software · Xmlsoft · reported by product-security@apple.comCritical 9.8

    libxslt in Apple iOS before 9.3.3, OS X before 10.11.6, iTunes before 12.4.2 on Windows, iCloud before 5.2.1 on Windows, tvOS before 9.2.2, and watchOS before 2.2.2 allows remote attackers to cause a denial of service (memory corruption) or possibly have unspecified other impact via unknown vectors, a different vulnerability than CVE-2016-4607, CVE-2016-4609, CVE-2016-4610, and CVE-2016-4612.

    Product
    Libxslt
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Jul 21, 2016libxslt in Apple iOS before 9.3.3, OS X before 10.11.6, iTunes before 12.4.2 on Windows, iCloud before 5.2.1 on Windows, tvOS before 9.2.2, and watchOS before 2CVE-2016-4607 · Other software · Xmlsoft · reported by product-security@apple.comCritical 9.8

    libxslt in Apple iOS before 9.3.3, OS X before 10.11.6, iTunes before 12.4.2 on Windows, iCloud before 5.2.1 on Windows, tvOS before 9.2.2, and watchOS before 2.2.2 allows remote attackers to cause a denial of service (memory corruption) or possibly have unspecified other impact via unknown vectors, a different vulnerability than CVE-2016-4608, CVE-2016-4609, CVE-2016-4610, and CVE-2016-4612.

    Product
    Libxslt
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Jun 5, 2016numbers.c in libxslt before 1.1.29, as used in Google Chrome before 51.0.2704.63, mishandles the i format token for xsl:number data, which allows remote attackeCVE-2016-1684 · Computers, phones & browsers · Google · reported by chrome-cve-admin@google.comHigh 7.5

    numbers.c in libxslt before 1.1.29, as used in Google Chrome before 51.0.2704.63, mishandles the i format token for xsl:number data, which allows remote attackers to cause a denial of service (integer overflow or resource consumption) or possibly have unspecified other impact via a crafted document.

    Product
    Chrome
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Jun 5, 2016numbers.c in libxslt before 1.1.29, as used in Google Chrome before 51.0.2704.63, mishandles namespace nodes, which allows remote attackers to cause a denial ofCVE-2016-1683 · Other software · Xmlsoft · reported by chrome-cve-admin@google.comHigh 7.5

    numbers.c in libxslt before 1.1.29, as used in Google Chrome before 51.0.2704.63, mishandles namespace nodes, which allows remote attackers to cause a denial of service (out-of-bounds heap memory access) or possibly have unspecified other impact via a crafted document.

    Product
    Libxslt
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • May 20, 2016libxslt, as used in Apple iOS before 9.3.2, OS X before 10.11.5, tvOS before 9.2.1, and watchOS before 2.2.1, allows remote attackers to execute arbitrary code CVE-2016-1841 · Computers, phones & browsers · Apple · reported by product-security@apple.comHigh 8.8

    libxslt, as used in Apple iOS before 9.3.2, OS X before 10.11.5, tvOS before 9.2.1, and watchOS before 2.2.1, allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted web site.

    Product
    Iphone OS
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Nov 17, 2015The xsltStylePreCompute function in preproc.c in libxslt 1.1.28 does not check if the parent node is an element, which allows attackers to cause a denial of serCVE-2015-7995 · Computers, phones & browsers · Apple · reported by MITREMedium 5

    The xsltStylePreCompute function in preproc.c in libxslt 1.1.28 does not check if the parent node is an element, which allows attackers to cause a denial of service via a crafted XML file, related to a "type confusion" issue.

    Product
    Iphone OS
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Dec 14, 2013xslt.c in libxslt before 1.1.25 allows context-dependent attackers to cause a denial of service (crash) via a stylesheet that embeds a DTD, which causes a strucCVE-2013-4520 · Other software · Xmlsoft · reported by Red HatMedium 4.3

    xslt.c in libxslt before 1.1.25 allows context-dependent attackers to cause a denial of service (crash) via a stylesheet that embeds a DTD, which causes a structure to be accessed as a different type. NOTE: this issue is due to an incomplete fix for CVE-2012-2825.

    Product
    Libxslt
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Oct 2, 2013Use-after-free vulnerability in the XSLStyleSheet::compileStyleSheet function in core/xml/XSLStyleSheetLibxslt.cpp in Blink, as used in Google Chrome before 30.CVE-2013-2911 · Computers, phones & browsers · Google · reported by chrome-cve-admin@google.comMedium 6.8

    Use-after-free vulnerability in the XSLStyleSheet::compileStyleSheet function in core/xml/XSLStyleSheetLibxslt.cpp in Blink, as used in Google Chrome before 30.0.1599.66, allows remote attackers to cause a denial of service or possibly have unspecified other impact by leveraging improper handling of post-failure recompilation in unspecified libxslt versions.

    Product
    Chrome
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Apr 12, 2013libxslt before 1.1.28 allows remote attackers to cause a denial of service (NULL pointer dereference and crash) via an (1) empty match attribute in a XSL key toCVE-2012-6139 · Other software · Xmlsoft · reported by Red HatMedium 5

    libxslt before 1.1.28 allows remote attackers to cause a denial of service (NULL pointer dereference and crash) via an (1) empty match attribute in a XSL key to the xsltAddKey function in keys.c or (2) uninitialized variable to the xsltDocumentFunction function in functions.c.

    Product
    Libxslt
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Oct 3, 2012The libxslt support in contrib/xml2 in PostgreSQL 8.3 before 8.3.20, 8.4 before 8.4.13, 9.0 before 9.0.9, and 9.1 before 9.1.5 does not properly restrict accessCVE-2012-3488 · Other software · Postgresql · reported by Red HatMedium 4.9

    The libxslt support in contrib/xml2 in PostgreSQL 8.3 before 8.3.20, 8.4 before 8.4.13, 9.0 before 9.0.9, and 9.1 before 9.1.5 does not properly restrict access to files and URLs, which allows remote authenticated users to modify data, obtain sensitive information, or trigger outbound traffic to arbitrary external hosts by leveraging (1) stylesheet commands that are permitted by the libxslt security options or (2) an xslt_process feature, related to an XML External Entity (aka XXE) issue.

    Product
    Postgresql
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Sep 26, 2012Double free vulnerability in libxslt, as used in Google Chrome before 22.0.1229.79, allows remote attackers to cause a denial of service or possibly have unspecCVE-2012-2893 · Computers, phones & browsers · Google · reported by chrome-cve-admin@google.comMedium 6.8

    Double free vulnerability in libxslt, as used in Google Chrome before 22.0.1229.79, allows remote attackers to cause a denial of service or possibly have unspecified other impact via vectors related to XSL transforms.

    Product
    Chrome
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Aug 31, 2012libxslt 1.1.26 and earlier, as used in Google Chrome before 21.0.1180.89, does not properly manage memory, which might allow remote attackers to cause a denial CVE-2012-2870 · Computers, phones & browsers · Apple · reported by chrome-cve-admin@google.comMedium 4.3

    libxslt 1.1.26 and earlier, as used in Google Chrome before 21.0.1180.89, does not properly manage memory, which might allow remote attackers to cause a denial of service (application crash) via a crafted XSLT expression that is not properly identified during XPath navigation, related to (1) the xsltCompileLocationPathPattern function in libxslt/pattern.c and (2) the xsltGenerateIdFunction function in libxslt/functions.c.

    Product
    Iphone OS
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Feb 8, 2012libxslt, as used in Google Chrome before 17.0.963.46, allows remote attackers to cause a denial of service (out-of-bounds read) via unspecified vectors.CVE-2011-3970 · Computers, phones & browsers · Google · reported by chrome-cve-admin@google.comMedium 4.3

    libxslt, as used in Google Chrome before 17.0.963.46, allows remote attackers to cause a denial of service (out-of-bounds read) via unspecified vectors.

    Product
    Chrome
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Feb 1, 2012PHP before 5.3.9 has improper libxslt security settings, which allows remote attackers to create arbitrary files via a crafted XSLT stylesheet that uses the libCVE-2012-0057 · Websites & servers · PHP · reported by Red HatMedium 6.4

    PHP before 5.3.9 has improper libxslt security settings, which allows remote attackers to create arbitrary files via a crafted XSLT stylesheet that uses the libxslt output extension.

    Product
    PHP
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Jul 21, 2011WebKit in Apple Safari before 5.0.6 has improper libxslt security settings, which allows remote attackers to create arbitrary files, and consequently execute arCVE-2011-1774 · Computers, phones & browsers · Apple · reported by Red HatHigh 8.8

    WebKit in Apple Safari before 5.0.6 has improper libxslt security settings, which allows remote attackers to create arbitrary files, and consequently execute arbitrary code, via a crafted web site. NOTE: this may overlap CVE-2011-1425.

    Product
    Safari
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Apr 15, 2011The generate-id XPath function in libxslt in Apple iOS 4.3.x before 4.3.2 allows remote attackers to obtain potentially sensitive information about heap memory CVE-2011-0195 · Computers, phones & browsers · Apple · reported by product-security@apple.comMedium 4.3

    The generate-id XPath function in libxslt in Apple iOS 4.3.x before 4.3.2 allows remote attackers to obtain potentially sensitive information about heap memory addresses via a crafted web site. NOTE: this may overlap CVE-2011-1202.

    Product
    Iphone OS
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Mar 10, 2011The xsltGenerateIdFunction function in functions.c in libxslt 1.1.26 and earlier, as used in Google Chrome before 10.0.648.127 and other products, allows remoteCVE-2011-1202 · Computers, phones & browsers · Google · reported by MITREMedium 4.3

    The xsltGenerateIdFunction function in functions.c in libxslt 1.1.26 and earlier, as used in Google Chrome before 10.0.648.127 and other products, allows remote attackers to obtain potentially sensitive information about heap memory addresses via an XML document containing a call to the XSLT generate-id XPath function.

    Product
    Chrome
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Aug 1, 2008Multiple heap-based buffer overflows in the rc4 (1) encryption (aka exsltCryptoRc4EncryptFunction) and (2) decryption (aka exsltCryptoRc4DecryptFunction) functiCVE-2008-2935 · Other software · Xmlsoft · reported by Red HatHigh 7.5

    Multiple heap-based buffer overflows in the rc4 (1) encryption (aka exsltCryptoRc4EncryptFunction) and (2) decryption (aka exsltCryptoRc4DecryptFunction) functions in crypto.c in libexslt in libxslt 1.1.8 through 1.1.24 allow context-dependent attackers to execute arbitrary code via an XML file containing a long string as "an argument in the XSL input."

    Product
    Libxslt
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • May 23, 2008Buffer overflow in pattern.c in libxslt before 1.1.24 allows context-dependent attackers to cause a denial of service (crash) and possibly execute arbitrary codCVE-2008-1767 · Other software · Redhat · reported by MITREHigh 7.5

    Buffer overflow in pattern.c in libxslt before 1.1.24 allows context-dependent attackers to cause a denial of service (crash) and possibly execute arbitrary code via an XSL style sheet file with a long XSLT "transformation match" condition that triggers a large number of steps.

    Product
    Desktop
    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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