CVE-2021-33926
HIGH8.8EPSS 0.50%Server-Side Request Forgery in Plone CMS
Published: 2/17/2023Modified: 3/19/2025
Description
An issue in Plone CMS allows attacker to access sensitive information via the RSS feed protlet.
Affected packages (2)
- PyPI/plone>= 4.3, < 5.2.5
- PyPI/plone>= 4.3, < 5.2.5
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 4.0 | — | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N |
| osv | CVSS 3.1 | HIGH8.8 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
References (6)
- ADVISORYhttps://nvd.nist.gov/vuln/detail/CVE-2021-33926
- PATCHhttps://github.com/plone/Plone
- WEBhttps://github.com/pypa/advisory-database/tree/main/vulns/plone/PYSEC-2023-289.yaml
- WEBhttps://github.com/s-kustm/Subodh/blob/master/Plone%205.2.4%20Vulnerable%20to%20bilend%20SSRF.pdf
- WEBhttps://plone.org/security/hotfix/20210518
- WEBhttps://plone.org/security/hotfix/20210518/blind-ssrf-via-feedparser-accessing-an-internal-url