A stored cross site scripting (XSS) vulnerability in the 'Smileys' feature of Codoforum v5.0.2 allows authenticated attackers to execute ar…

published 2021-07-09 5y ago modified 2026-06-17 4mo ago also EUVD-2020-18507

cvss: 5.4; version 3.1, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 0.5%; EPSS 0.5% chance of exploitation in 30 days, percentile 43%
public exploits: 0; none known

A stored cross site scripting (XSS) vulnerability in the 'Smileys' feature of Codoforum v5.0.2 allows authenticated attackers to execute arbitrary web scripts or HTML via crafted payload entered into the 'Smiley Code' parameter.

Is CVE-2020-25875 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

Check with Fencer

Exploit prediction

0.51% chance of exploitation in the next 30 days, higher than 43% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

github.com https://github.com/r0ck3t1973/xss_payload/issues/4 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
NVD	3.1	5.4	CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
NVD	2.0	3.5	AV:N/AC:M/Au:S/C:N/I:P/A:N

Classification

Weakness

CWE-79 Improper Neutralization of Input During Web Page Generation

References

github.com /r0ck3t1973/xss_payload/issues/4
exploit, issue-tracking, third-party-advisory
codoforum.com /
product

Sources

CVE List CVE-2020-25875
NVD CVE-2020-25875

Fencer Intel 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.