PT-2021-16901 · Unknown · Piranha Cms

Published 2021-10-25 · Updated 2021-10-27 · CVE-2021-25977

Positive Technologies (AI Summary)

CVSS v3.1

5.4

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions PiranhaCMS versions 7.0.0 through 9.1.1

Description The issue is related to stored XSS due to the page title being improperly sanitized. A low privileged user can trigger arbitrary JavaScript execution by creating a page with a specially crafted page title.

Recommendations For PiranhaCMS versions 7.0.0 through 9.1.1, consider sanitizing the page title input to prevent stored XSS attacks. As a temporary workaround, restrict the ability of low privileged users to create pages with custom titles until a proper fix is applied.

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2021-25977

GHSA-JVJP-VH27-R9H5

Affected Products

Piranha Cms

References · 7

• https://github.com/PiranhaCMS/piranha.core/commit/543bc53c7dbd28c793ec960b57fb0e716c6b18d7 · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2021-25977 · Security Note
• https://osv.dev/vulnerability/CVE-2021-25977 · Vendor Advisory
• https://osv.dev/vulnerability/GHSA-jvjp-vh27-r9h5 · Vendor Advisory
• https://github.com/PiranhaCMS/piranha.core · Note
• https://t.me/cvenotify/22328 · Telegram Post
• https://whitesourcesoftware.com/vulnerability-database/CVE-2021-25977 · Note