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htmlpurifier vulnerabilities

4 published CVES affecting htmlpurifier, from public sources (CVE.org, NVD, CISA KEV, FIRST EPSS, OSV).

Total
4
Critical
0
High
0
Medium
4
Low
0
Unscored
0
CISA KEV
0
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Latest htmlpurifier CVEs

Newest publication first

  1. MediumCVSS 4.3 EPSS 0.90% PoC

    Multiple cross-site scripting (XSS) vulnerabilities in HTML Purifier before 4.1.0, when Internet Explorer is used, allow remote attackers to inject arbitrary web script or HTML via a crafted (1) background-image, (2) background, or (3) font-family Cascading Style Sheets (CSS) pro...

  2. MediumCVSS 4.3 EPSS 2.0% PoC

    Cross-site scripting (XSS) vulnerability in HTML Purifier before 4.1.1, as used in Mahara and other products, when the browser is Internet Explorer, allows remote attackers to inject arbitrary web script or HTML via unspecified vectors.

  3. MediumCVSS 4.3 EPSS 1.0%

    Cross-site scripting (XSS) vulnerability in smoketests/configForm.php in HTML Purifier before 2.0.1 allows remote attackers to inject arbitrary web script or HTML via unspecified vectors related to "unescaped print_r output."

Sources: CVE.org, NVD, CISA KEV, FIRST EPSS, OSV and public exploit-reference metadata. Product matching comes from the published CVE records. A proof-of-concept means public code exists; it is not evidence of exploitation.