CVE-2026-21430: high-severity vulnerability in emlog
Emlog: CSRF chained with stored XSS leads to ATO
Published · Updated
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21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 7epss 0.2%
Emlog is an open source website building system. In version 2.5.23, article creation functionality is vulnerable to cross-site request forgery (CSRF). This can lead to a user being forced to post an article with arbitrary, attacker-controlled content. This, when combined with stored cross-site scripting, leads to account takeover. As of time of publication, no known patched versions are available.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:H/VA:N/SC:N/SI:H/SA:N/E:P
Affected products
emlog · emlogRelated CVEs — emlog
In the same product, most dangerous first.
CVE-2026-34607HIGHEmlog: Path Traversal in emUnZip() allows arbitrary file write leading to RCEEPSS 0.9%CVE-2025-47785HIGHEMLOG SQL Injection VulnerabilityEPSS 0.8%CVE-2025-47787HIGHEmlog Pro Contains a File Upload VulnerabilityEPSS 0.8%CVE-2026-22799CRITICALemlog Arbitrary File Upload VulnerabilityEPSS 0.7%CVE-2026-73849CRITICALemlog allows unauthenticated reinstallation via `install.php?action=reinstall`.EPSS 0.7%CVE-2025-30372HIGHEmlog Pro contains an SQL injection vulnerability.EPSS 0.6%