CVE-2020-25787 in the critical feed json
An issue was discovered in Tiny Tiny RSS (aka tt-rss) before 2020-09-16.
published 2020-09-19 6 y ago modified 2026-06-17 4 mo ago also EUVD-2020-18437
- cvss
- 9.8
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 18.4%
- EPSS 18.4% chance of exploitation in 30 days, percentile 97%
- public exploits
- 1
- Exploit-DB
Summary
An issue was discovered in Tiny Tiny RSS (aka tt-rss) before 2020-09-16. It does not validate all URLs before requesting them.
Patch / fix
- tt-rss tiny_tiny_rss 2020-09-16
- tt-rss Debian 12 21~git20210204.b4cbc79+dfsg-1
debian advisories DEBIAN-CVE-2020-25787
Timeline
- Published
- First public exploit (EDB-49606)
Exploit prediction
18.42% chance of exploitation in the next 30 days, higher than 97% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- EDB-49606 Tiny Tiny RSS - Remote Code Execution webapps, 2021-03-02
- packetstormsecurity.com http://packetstormsecurity.com/files/161606/TinyTinyRSS-Remote-Code-Execution.html referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 10.0 | AV:N/AC:L/Au:N/C:C/I:C/A:C |
Classification
- Weakness
-
- CWE-20 Improper Input Validation
References
-
git.tt-rss.org
/fox/tt-rss/commit/c3d14e1fa54c7dade7b1b7955575e2991396d7ef
patch, vendor-advisory
-
packetstormsecurity.com
/files/161606/TinyTinyRSS-Remote-Code-Execution.html
exploit, third-party-advisory, vdb-entry
-
community.tt-rss.org
/t/heads-up-several-vulnerabilities-fixed/3799
vendor-advisory
- blog.neagaru.com /p/exploiting-tiny-tiny-rss-2020
Sources
- CVE List CVE-2020-25787
- NVD CVE-2020-25787
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.