High severityNVD Advisory· Published Feb 17, 2023· Updated Mar 19, 2025
CVE-2021-33926
CVE-2021-33926
Description
An issue in Plone CMS v. 5.2.4, 5.2.3, 5.2.2, 5.2.1, 5.2.0, 5.1rc2, 5.1rc1, 5.1b4, 5.1b3, 5.1b2, 5.1a2, 5.1a1, 5.1.7, 5.1.6, 5.1.5, 5.1.4, 5.1.2, 5.1.1 5.1, 5.0rc3, 5.0rc2, 5.0rc1, 5.0.9, 5.0.8, 5.0.7, 5.0.6, 5.0.5, 5.0.4, 5.0.3, 5.0.2, 5.0.10, 5.0.1, 5.0, 4.3.9, 4.3.8, 4.3.7, 4.3.6, 4.3.5, 4.3.4, 4.3.3, 4.3.20, 4 allows attacker to access sensitive information via the RSS feed protlet.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
PlonePyPI | >= 4.3, < 5.2.5 | 5.2.5 |
Affected products
2- Plone CMS/Plone CMSdescription
Patches
Vulnerability mechanics
References
6- github.com/advisories/GHSA-47p5-p3jw-w78wghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2021-33926ghsaADVISORY
- github.com/pypa/advisory-database/tree/main/vulns/plone/PYSEC-2023-289.yamlghsaWEB
- github.com/s-kustm/Subodh/blob/master/Plone%205.2.4%20Vulnerable%20to%20bilend%20SSRF.pdfghsaWEB
- plone.org/security/hotfix/20210518ghsaWEB
- plone.org/security/hotfix/20210518/blind-ssrf-via-feedparser-accessing-an-internal-urlghsaWEB
News mentions
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