CVE-2021-25978

Published: Nov 7, 2021

Modified: Apr 30, 2025

PUBLISHED

CVSS v3.1

5.4

MEDIUM

Description

Apostrophe CMS versions between 2.63.0 to 3.3.1 are vulnerable to Stored XSS where an editor uploads an SVG file that contains malicious JavaScript onto the Images module, which triggers XSS once viewed.

Vendor	Product	Versions
Apostrophe	Apostrophe	affected `unspecified - <= 3.3.1` affected `2.63.0 - < unspecified`

Weaknesses (CWE)

CWE-79

CVSS v3.1 Details

CVSS v3.1 Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

Required

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

None

References

https://github.com/apostrophecms/apostrophe/commit/c8b94ee9c79468f1ce28e31966cb0e0839165e59

x_refsource_MISC

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CVE-2021-25978

Description

Affected Products

Weaknesses (CWE)

CVSS v3.1 Details

References