Description
In PiranhaCMS, versions 7.0.0 to 9.1.1 are vulnerable to stored XSS due to the page title improperly sanitized. By creating a page with a specially crafted page title, a low privileged user can trigger arbitrary JavaScript execution.
References (2)
Core 2
Core References
Patch, Third Party Advisory x_refsource_misc
https://github.com/PiranhaCMS/piranha.core/commit/543bc53c7dbd28c793ec960b57fb0e716c6b18d7
Third Party Advisory x_refsource_misc
https://www.whitesourcesoftware.com/vulnerability-database/CVE-2021-25977
Scores
CVSS v3
5.4
EPSS
0.0032
EPSS Percentile
54.9%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
no
Technical Impact
partial
Details
CWE
CWE-79
Status
published
Products (2)
dotnetfoundation/piranha_cms
7.0.0 - 9.1.1
nuget/Piranha
7.0.0 - 9.2.0NuGet
Published
Oct 25, 2021
Tracked Since
Feb 18, 2026