Silverstripe History XSS Vulnerability

published 2024-05-22 2y ago modified 2024-12-07 last yr.

cvss: 6.1; version 3.1, GitHub
cisa kev: Not listed; not in CISA's catalog
epss: —; no score, EPSS covers CVEs only
public exploits: 0; none known

A cross-site scripting vulnerability has been discovered in the CMS page history tab.

This vulnerability can only be exploited if a user with CMS access has posted malicious or unescaped HTML into any of the text fields on a page, and if the "compare mode" option is selected. The HTML will be embedded into the page unescaped.

This has been resolved by performing the text comparison in a HTML friendly way.

Patch / fix

fixed in 1

packagist silverstripe/cms 3.1.10

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CVSS scores

assigned by	version	score	vector
GitHub	3.1	6.1	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Affected packages

ecosystem	package	affected	fixed in
packagist	silverstripe/cms	>=3.1.0, <3.1.10	3.1.10

Classification

Weakness

CWE-79 Improper Neutralization of Input During Web Page Generation

References

Sources

GitHub Advisory GHSA-6hh6-59j2-qrxw

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