What’s Vulnerable › Vulnerabilities

CVE-2021-27693

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.1% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2022-09-02 · updated 2026-06-17
• Weakness: CWE-918

Description

Server-side Request Forgery (SSRF) vulnerability in PublicCMS before 4.0.202011.b via /publiccms/admin/ueditor when the action is catchimage.

Affected products

• Sanluan PublicCMS: before 4.0.202011.b — fixed in 4.0.202011.b

How to fix

Upgrade to a fixed version: Sanluan PublicCMS 4.0.202011.b. Check the vendor advisory for mitigations.

References

• https://github.com/sanluan/PublicCMS/commit/0f4c4872914b6a71305e121a7d9a19c07cde0338
• https://github.com/sanluan/PublicCMS/issues/51
• https://github.com/sanluan/PublicCMS/commit/0f4c4872914b6a71305e121a7d9a19c07cde0338
• https://github.com/sanluan/PublicCMS/issues/51

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