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TI-2022-13176 Aliases CVE-2022-31132

Unauthenticated SSRF in 3rd party module "cerdic/csstidy"

Priority MEDIUM 49CWE-918Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA.

Summary

Nextcloud Mail is an email application for the nextcloud personal cloud product. Affected versions shipped with a CSS minifier on the path `./vendor/cerdic/css-tidy/css_optimiser.php`. Access to the minifier is unrestricted and access may lead to Server-Side Request Forgery (SSRF). It is recommendet to upgrade to Mail 1.12.7 or Mail 1.13.6. Users unable to upgrade may manually delete the file located at `./vendor/cerdic/css-tidy/css_optimiser.php`

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00724 54th percentileScored 2026-11-07
Fix Fixed security-advisories (nextcloud): 1.12.8, 1.13.6

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
nextcloudsecurity-advisoriesbefore 1.12.8; 1.13.0 to before 1.13.61.12.8, 1.13.6Patch availableCNA
  • security-advisories Vendornextcloud Affected before 1.12.8; 1.13.0 to before 1.13.6 Fixed in 1.12.8, 1.13.6 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:nextcloud:mail:*:*:*:*:*:*:*:*before 1.12.8; 1.13.0 to before 1.13.6Vulnerablenextcloud
  • cpe:2.3:a:nextcloud:mail:*:*:*:*:*:*:*:* Versions before 1.12.8; 1.13.0 to before 1.13.6 Vulnerable ·nextcloud

Remediation

  • Fix · CNA security-advisories (nextcloud) Fixed in 1.12.8, 1.13.6

Timeline

  1. 2026-10-02 Threatist record created from CVE-2022-31132

References

Advisory 1

  • TI-2023-09741 Blind SSRF via server URL input in the Nextcloud Mail app CVSS 3.1MEDIUM 5.0
  • TI-2023-26170 Nextcloud Mail app vulnerable to Server-Side Request Forgery CVSS 3.1CRITICAL 9.8
  • TI-2021-12320 Missing permission check on email metadata retrieval CVSS 3.1HIGH 8.8
  • TI-2024-35179 Nextcloud Mail auto configurator can be tricked into sending account information to wrong servers CVSS 3.1HIGH 8.2
  • TI-2020-06574 A missing verification of the TLS host in Nextcloud Mail 1.1.3 allowed a man in the middle attack. CVSS 3.1HIGH 7.0
  • TI-2023-09742 Nexcloud Mail app temporarily stores cleartext password in database CVSS 3.1MEDIUM 6.5
See all 14 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences