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TI-2021-12912 Aliases CVE-2021-33510GHSA-4mg4-wvmx-5332

Plone through 5.2.4 allows remote authenticated managers to conduct SSRF attacks via an…

Priority LOW 22CWE-918Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Information disclosure
Confidentiality · integrity · availability
Low · None · None
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub. Impact type from CWE-918 and the CVSS impact.

Summary

Plone through 5.2.4 allows remote authenticated managers to conduct SSRF attacks via an event ical URL, to read one line of a file.

Why it matters now

EPSS 0.00962 61st percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
—Plone (PyPI)up to 5.2.4—No fix listedGHSA-4mg4-wvmx-5332
  • — Vendor— Affected all versions Fixed in — No fix listed CNA
  • Plone (PyPI) Vendor— Affected up to 5.2.4 Fixed in — No fix listed GHSA-4mg4-wvmx-5332

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:plone:plone:*:*:*:*:*:*:*:*up to 5.2.4Vulnerableplone
  • cpe:2.3:a:plone:plone:*:*:*:*:*:*:*:* Versions up to 5.2.4 Vulnerable ·plone

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-33510
  2. 2026-10-03 Alias added: GHSA-4mg4-wvmx-5332

References

Advisory 4

Other 2

  • TI-2011-03162 Unspecified vulnerability in Zope 2.12.x and 2.13.x, as used in Plone 4.0.x through… CVSS 2.0HIGH 9.3
  • TI-2021-13226 An issue in Plone CMS v. CVSS 3.1HIGH 8.8
  • TI-2024-15757 The HTTP PUT and DELETE methods are enabled in the Plone official Docker version 5.2.13… CVSS 3.1HIGH 7.5
  • TI-2021-12911 Plone through 5.2.4 allows remote authenticated managers to perform disk I/O via crafted… CVSS 3.1CRITICAL 9.9
  • TI-2020-17872 The official plone Docker images before version of 4.3.18-alpine (Alpine specific)… CVSS 3.1CRITICAL 9.8
  • TI-2020-06422 A privilege escalation issue in plone.app.contenttypes in Plone 4.3 through 5.2.1 allows… CVSS 3.1CRITICAL 9.8
See all 102 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences