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    CVE-2026-21431

    Emlog is an open source website building system. Version 2.5.23 has a stored cross-site scripting vulnerability in the `Resource media library ` function while publishing an article. As of time of publication, no known patched versions are available.

    Published:Jan 2, 2026
    Last Modified:Apr 18, 2026
    EPS:Jan 2, 2026
    EPSS Score:0.00041
    CVSS Score:5.4

    Affected Products

    Vendor
    Emlog
    Product
    Emlog

    Exploits

    https://github.com/emlog/emlog/security/advisories/GHSA-9vc2-crhr-248x

    Related CVEs

    CVE-2026-73848 (CVSS 6.9) — Emlog is an open source website building system. In versions 2.6.29 and prior, tag names in emlog are not HTML…
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    CVE-2026-53758 (CVSS 8.7) — Emlog is an open source website building system. In versions 2.6.29 and prior, article content is processed by…
    CVE-2026-53756 (CVSS 4.9) — Emlog is an open source website building system. Prior to version 2.6.16, Emlog CMS Pro contains a blind SQL i…
    CVE-2026-73850 (CVSS 8.6) — Emlog is an open source website building system. In 2.6.20 and earlier, there is a SQL injection vulnerability…
    CVE-2026-73849 (CVSS 9.8) — Emlog is an open source website building system. In 2.6.26 and earlier, install.php accepts action=reinstall w…
    CVE-2026-73847 (CVSS 6.8) — Emlog is an open source website building system. In 2.6.26 and earlier, missing CSRF protection on the AI Assi…
    CVE-2026-67598 (CVSS 9.1) — Emlog Pro through 2.6.23 contains a disabled TLS certificate validation vulnerability in include/service/ai.ph…
    CVE-2026-52520 (CVSS 5.4) — Emlog CMS <= 2.6.14 contains a stored cross-site scripting (XSS) vulnerability in the article publishing modul…
    CVE-2026-46687 (CVSS 7.7) — Emlog is an open source website building system. In 2.6.13 and earlier, the article publishing interface store…

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High