Server-Side Request Forgery in Plone CMS
An issue in Plone CMS allows attacker to access sensitive information via the RSS feed protlet.
Affected software
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| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Python (PyPI) | plone | >= 4.3, < 5.2.5 | 5.2.5 |
References
- https://github.com/s-kustm/Subodh/blob/master/Plone%205.2.4%20Vulnerable%20to%20bilend%20SSRF.pdf
- https://plone.org/security/hotfix/20210518/blind-ssrf-via-feedparser-accessing-an-internal-url
- https://plone.org/security/hotfix/20210518
- https://nvd.nist.gov/vuln/detail/CVE-2021-33926
- https://github.com/plone/Plone
- https://github.com/pypa/advisory-database/tree/main/vulns/plone/PYSEC-2023-289.yaml
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H- Weakness (CWE)
CWE-918- Platform
- Python (PyPI)
- Package
plone- Disclosed
- 17.02.2023
- Updated
- 11.10.2026 12:19
Sources and licenses
OSV / GitHub Advisory Database - PYSEC-2023-289 - PyPA Advisory Database; CC BY 4.0
OSV / GitHub Advisory Database - GHSA-47p5-p3jw-w78w - CC BY 4.0
Vulnerability history: plone
All published vulnerabilities of this package (Python (PyPI)), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 101
- First → latest
- 09.2006 03.2024
- Without a fix
- 10
- Exploited in attacks
- 0
Severity breakdown
- Critical 5
- High 36
- Medium 58
- Low 2
Disclosures per year
- 2017: 15
- 2018: 4
- 2019: 0
- 2020: 10
- 2021: 10
- 2022: 7
- 2023: 1
- 2024: 2
- 2025: 0
- 2026: 0
earlier: 52
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