CVE-2026-54721

Published: Ago 27, 2026 Last Modified: Ago 28, 2026
ExploitDB:
Other exploit source:
Google Dorks:
HIGH 8,8
Source: [email protected]
Attack Vector: network
Attack Complexity: low
Privileges Required: low
User Interaction: none
Scope: unchanged
Confidentiality: high
Integrity: high
Availability: high

Description

AI Translation Available

Silverstripe UserForms provides a visual form builder for the Silverstripe CMS. From 6.0.0 until 6.4.9, 7.0.7, and 7.1.1, the userform email recipient subject field in the CMS accepts a specially crafted payload that can be interpreted as executable server-side code. An authenticated CMS user with permission to configure a UserForms email recipient can use the subject field to run arbitrary code on the server, compromising confidentiality, integrity, and availability. This issue is fixed in versions 6.4.9, 7.0.7, and 7.1.1.

EPSS (Exploit Prediction Scoring System)

Trend Analysis

EPSS (Exploit Prediction Scoring System)

Prevede la probabilità di sfruttamento basata su intelligence sulle minacce e sulle caratteristiche della vulnerabilità.

EPSS Score
0,0042
Percentile
0,3th
Updated

Single Data Point

Only one EPSS measurement is available for this CVE. Trend analysis requires multiple data points over time.

94

Improper Control of Generation of Code ('Code Injection')

Draft
Abstraction: Base Structure: Simple
Common Consequences
Security Scopes Affected:
Access Control Integrity Confidentiality Availability Non-Repudiation
Potential Impacts:
Bypass Protection Mechanism Gain Privileges Or Assume Identity Execute Unauthorized Code Or Commands Hide Activities
Applicable Platforms
Languages: Interpreted
Technologies: AI/ML
Likelihood of Exploit: Medium
View CWE Details
https://github.com/silverstripe/silverstripe-userforms/comm…
https://github.com/silverstripe/silverstripe-userforms/commit/23c069866900c19b4…
https://github.com/silverstripe/silverstripe-userforms/comm…
https://github.com/silverstripe/silverstripe-userforms/commit/c55494ad7c717b199…
https://github.com/silverstripe/silverstripe-userforms/pull…
https://github.com/silverstripe/silverstripe-userforms/pull/1441
https://github.com/silverstripe/silverstripe-userforms/pull…
https://github.com/silverstripe/silverstripe-userforms/pull/1442
https://github.com/silverstripe/silverstripe-userforms/rele…
https://github.com/silverstripe/silverstripe-userforms/releases/tag/6.4.9
https://github.com/silverstripe/silverstripe-userforms/rele…
https://github.com/silverstripe/silverstripe-userforms/releases/tag/7.0.7
https://github.com/silverstripe/silverstripe-userforms/rele…
https://github.com/silverstripe/silverstripe-userforms/releases/tag/7.1.1
https://github.com/silverstripe/silverstripe-userforms/secu…
https://github.com/silverstripe/silverstripe-userforms/security/advisories/GHSA…