What’s Vulnerable › Vulnerabilities

CVE-2021-31778

• Severity: medium (CVSS 5.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2021-04-28 · updated 2026-06-17
• Weakness: CWE-79

Description

The media2click (aka 2 Clicks for External Media) extension 1.x before 1.3.3 for TYPO3 allows XSS by a backend user account.

Affected products

• Media2Click Project Media2Click: from 1.0.0 before 1.3.3 — fixed in 1.3.3

How to fix

Upgrade to a fixed version: Media2Click Project Media2Click 1.3.3. Check the vendor advisory for mitigations.

References

• https://typo3.org/security/advisory/typo3-ext-sa-2021-004
• https://typo3.org/security/advisory/typo3-ext-sa-2021-004

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