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Vulnerability record · CVE-2020-25787 · published 19 September 2020

CVE-2020-25787: Tt-rss tiny tiny rss improper input validation vulnerability

TTt Rss · Tiny Tiny Rss

An issue was discovered in Tiny Tiny RSS (aka tt-rss) before 2020-09-16. It does not validate all URLs before requesting them.

9.8 CVSS 3.1 Critical EPSS 18% · top 2.9% CWE-20 · Improper input validation
9.8CVSS 3.1 base score, v2 10.0
18%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
7References, 2 tagged exploit
17 Jun 2026Last modified by NVD

Description

An issue was discovered in Tiny Tiny RSS (aka tt-rss) before 2020-09-16. It does not validate all URLs before requesting them.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://packetstormsecurity.com/files/161606/TinyTinyRSS-Remote-Code-Execution.html ExploitThird Party AdvisoryVDB Entry
https://blog.neagaru.com/p/exploiting-tiny-tiny-rss-2020
https://community.tt-rss.org/t/heads-up-several-vulnerabilities-fixed/3799 Vendor Advisory
https://git.tt-rss.org/fox/tt-rss/commit/c3d14e1fa54c7dade7b1b7955575e2991396d7ef PatchVendor Advisory
http://packetstormsecurity.com/files/161606/TinyTinyRSS-Remote-Code-Execution.html ExploitThird Party AdvisoryVDB Entry
https://community.tt-rss.org/t/heads-up-several-vulnerabilities-fixed/3799 Vendor Advisory
https://git.tt-rss.org/fox/tt-rss/commit/c3d14e1fa54c7dade7b1b7955575e2991396d7ef PatchVendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2020-25787), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.