CVE-2021-25977
Cross-site Scripting in PiranhaCMS
5.4
MEDIUM
CVSS 3.1
EPSS 0.63%
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.
How to fix CVE-2021-25977
To remediate CVE-2021-25977, upgrade the affected package to a fixed version below.
- NuGet/Piranha—upgrade to 9.2.0 or later
Is CVE-2021-25977 being exploited?
Low — EPSS is 0.6%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- >= 7.0.0, < 9.2.0
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM5.4 | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N |