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CVE-2020-28735Plone before 5.2.3 allows SSRF attacks via the tracebacks feature (only available to the Manager role).
- 8.8HighCVSS base score
- 1.5%Exploitation in 30 daysEPSS · top 26% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
Plone before 5.2.3 allows SSRF attacks via the tracebacks feature (only available to the Manager role).
Timeline
ID reserved
By mitre
- 44 days later
· 44 days later
Published
- 4 years later
· 4 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.1 | High8.8 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 1.5% · top 26% of all CVEs (14 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 8.8.
Affected products
n/a
- affected n/a
Affected packages
Affected packages5
From reviewed advisories of the GitHub Advisory Database.
- PyPIPloneGHSA-x7wf-5mjc-6x76 (opens in a new tab)
- PyPIplone.app.dexterityGHSA-x7wf-5mjc-6x76 (opens in a new tab)
- PyPIplone.app.eventGHSA-x7wf-5mjc-6x76 (opens in a new tab)
- PyPIplone.app.themingGHSA-x7wf-5mjc-6x76 (opens in a new tab)
- PyPIplone.supermodelGHSA-x7wf-5mjc-6x76 (opens in a new tab)
References
References3
- https://www.misakikata.com/codes/plone/python-en.html (opens in a new tab)x_refsource_MISCx_transferred
- https://github.com/plone/Products.CMFPlone/issues/3209 (opens in a new tab)x_refsource_MISCx_transferred
- https://dist.plone.org/release/5.2.3/RELEASE-NOTES.txt (opens in a new tab)x_refsource_CONFIRMx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2020-0141 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisory GHSA-x7wf-5mjc-6x76 (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2020-28735)Record last updated .