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-2020-18439

cvss: 6.1; version 3.1, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 0.9%; EPSS 0.9% chance of exploitation in 30 days, percentile 59%
public exploits: 0; none known

An issue was discovered in Tiny Tiny RSS (aka tt-rss) before 2020-09-16. The cached_url feature mishandles JavaScript inside an SVG document.

Patch / fix

fixed in 1 distros 1 links 1

tt-rss tiny_tiny_rss 2020-09-16

tt-rss Debian 12 21~git20210204.b4cbc79+dfsg-1

debian advisories DEBIAN-CVE-2020-25789

git.tt-rss.org/fox/tt-rss@da5af2f commit

Exploit prediction

0.88% chance of exploitation in the next 30 days, higher than 59% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
NVD	3.1	6.1	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
NVD	2.0	4.3	AV:N/AC:M/Au:N/C:N/I:P/A:N

Classification

Weakness

CWE-79 Improper Neutralization of Input During Web Page Generation

References

git.tt-rss.org /fox/tt-rss/commit/da5af2fae091041cca27b24b6f0e69e4a6d0dc60
patch, vendor-advisory
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-2020-25789
NVD CVE-2020-25789

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.

Summary