TI-2025-20594 Aliases CVE-2025-27822 GHSA-6h54-vm3j-p486

Incorrect authorization in backdropcms Masquerade

LOW 35CWE-863Published 2025-03-07 · Updated 2025-03-07

Key facts

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

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-863.

Summary

An issue was discovered in the Masquerade module before 1.x-1.0.1 for Backdrop CMS. It allows people to temporarily switch to another user account. The module provides a "Masquerade as admin" permission to restrict people (who can masquerade) from switching to an account with administrative privileges. This permission is not always honored and may allow non-administrative users to masquerade as an administrator. This vulnerability is mitigated by the fact that an attacker must have a role with the "Masquerade as user" permission.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00297 22nd percentileScored 2026-11-08

Fix Fixed Masquerade (backdropcms): 1.x-1.0.1

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Total

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

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
backdropcms	Masquerade	before 1.x-1.0.1	1.x-1.0.1	Patch available	CNA

Masquerade Vendorbackdropcms Affected before 1.x-1.0.1 Fixed in 1.x-1.0.1 Patch available CNA

Remediation

Fix · CNA Masquerade (backdropcms) Fixed in 1.x-1.0.1

Timeline

2026-10-02 Threatist record created from CVE-2025-27822
2026-10-03 Alias added: GHSA-6h54-vm3j-p486

References

Other 1

https://backdropcms.org/security/backdrop-sa-contrib-2025-006

TI-2019-08480 jQuery before 3.4.0, as used in Drupal, Backdrop CMS, and other products, mishandles… CVSS 3.1MEDIUM 6.1
TI-2025-39465 Host Header Injection vulnerability in Backdrop CMS 1.32.1 allows attackers to manipulate… CVSS 3.1MEDIUM 6.1
TI-2023-14781 A stored Cross-site scripting (XSS) issue in Text Editors and Formats in Backdrop CMS… CVSS 3.1MEDIUM 4.8
TI-2022-20387 Backdrop CMS version 1.23.0 was discovered to contain a stored cross-site scripting (XSS) vulnerability via 'Comment.' . CVSS 3.1MEDIUM 4.8
TI-2022-20386 Backdrop CMS version 1.23.0 was discovered to contain a stored cross-site scripting (XSS)… CVSS 3.1MEDIUM 4.8
TI-2022-20385 Backdrop CMS version 1.23.0 was discovered to contain a stored cross-site scripting (XSS)… CVSS 3.1MEDIUM 4.8

See all 34 →

Sources

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