medium5.4
CVE-2021-36788
Cross-site Scripting in the yoast_seo TYPO3 extension
Impact
The extension fails to properly encode user input for output in HTML context. A TYPO3 backend user account is required to exploit the vulnerability.
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| composer | yoast-seo-for-typo3/yoast_seo | < 7.2.3 | 7.2.3 |
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Yoast | Yoast Seo | before 7.2.3 |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://typo3.org/help/security-advisories/security
- https://typo3.org/security/advisory/typo3-ext-sa-2021-013
- https://github.com/advisories/GHSA-28w5-j8xj-2xwc
- https://nvd.nist.gov/vuln/detail/CVE-2021-36788
- https://github.com/Yoast/Yoast-SEO-for-TYPO3/commit/a8278dae97dce8cd0722d38f7f5a30b563668590
- https://typo3.org/security/advisory/typo3-ext-sa-2021-012