Unrated

Cross-site scripting in Clickstorm SEO extension for TYPO3

IdentifiersCVE-2025-30081CWE-79

CVE-2025-30081 is a cross-site scripting (XSS) vulnerability in the Clickstorm SEO extension for TYPO3. According to the provided advisory, the flaw allows a logged-in TYPO3 backend user to inject improperly encoded input into HTML output rendered in the TYPO3 backend. The issue stems from insufficient output encoding of user-controlled input before it is included in backend HTML, enabling script-capable content to be executed in another user's browser within the backend context.

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ANALYST BRIEF

Impact, mitigation & remediation

What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.

Impact

What an attacker gets, and what they’ve been doing with it.

Successful exploitation can result in execution of attacker-supplied JavaScript in the TYPO3 backend context. This may enable session compromise, theft of backend-accessible data, execution of unauthorized actions on behalf of the victim user, and other browser-based actions available through the victim's authenticated TYPO3 backend session.

Mitigation

If you can’t patch tonight, do this now.

If immediate patching is not possible, limit backend access to trusted users only, reduce the number of accounts with backend access, and monitor for suspicious or unexpected content entered through the extension that could be rendered in backend HTML. Because the issue requires a logged-in backend user to supply malicious input, restricting who can authenticate to the TYPO3 backend and reviewing extension-generated content can reduce exposure until the extension is upgraded.

Remediation

Patch, then assume compromise.

Upgrade the Clickstorm SEO extension to a fixed release. The provided advisory states that updates 6.7.0, 7.4.0, 8.3.0, and 9.2.0 are available for download, and for the listed affected package range, upgrading to version 9.2.0 or later remediates the issue.

PUBLIC EXPLOITS

Exploits

No public exploits tracked yet. Mallory keeps watching.

VALID 0 / 0 TOTALView more in app

No public exploit code observed for this vulnerability.

ACTIVITY FEED

Recent activity

No public activity tracked yet. Mallory keeps watching.

0 SOURCESView more in app

No public activity observed for this vulnerability.

What this page doesn’t show

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Exposure mapping

Query your assets running an affected version, and investigate the blast radius.

Threat actor evidence

Every observed campaign linking this CVE to a named adversary.

Associated malware

Malware families riding this exploit, with evidence and IOCs.

Detection signatures

YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.

Vendor-by-vendor mapping

Cross-references every affected SKU, including bundled OEM variants.

Social activity