PT-2022-9841 · Publiccms · Publiccms

Published 2022-09-02 · Updated 2022-09-08 · CVE-2021-27693

Positive Technologies (AI Summary)

CVSS v3.1

9.8

Critical

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions PublicCMS versions prior to 4.0.202011.b

Description The issue is related to a Server-side Request Forgery (SSRF) vulnerability. It affects the /publiccms/admin/ueditor endpoint when the action is catchimage. This allows for potential unauthorized access to internal resources.

Recommendations For versions prior to 4.0.202011.b, update to version 4.0.202011.b or later to resolve the issue. As a temporary workaround, consider restricting access to the /publiccms/admin/ueditor endpoint when the action is catchimage until a patch is applied.

Exploit

Fix

SSRF

Weakness Enumeration

CWE-918

Related Identifiers

CVE-2021-27693

Affected Products

Publiccms

References · 6

• 🔥 https://github.com/sanluan/PublicCMS/issues/51 · Exploit
• https://github.com/sanluan/PublicCMS/commit/0f4c4872914b6a71305e121a7d9a19c07cde0338 · Patch
• https://osv.dev/vulnerability/CVE-2021-27693 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-27693 · Security Note
• https://t.me/cibsecurity/49257 · Telegram Post
• https://t.me/cvenotify/35652 · Telegram Post