Cross Site Scripting in Subrion CMS

published 2021-08-05 5y ago modified 2026-06-17 4mo ago also GHSA-hxj6-v58r-cqv3 , EUVD-2021-2081

cvss: 5.4; version 3.1, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 0.6%; EPSS 0.6% chance of exploitation in 30 days, percentile 50%
public exploits: 0; none known

Cross Site Scripting (XSS) vulnerability exists in Subrion CMS 4.2.2 when adding a blog and then editing an image file.

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Exploit prediction

0.62% chance of exploitation in the next 30 days, higher than 50% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

github.com https://github.com/intelliants/subrion/issues/868 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
GitHub	3.1	5.4	CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Affected packages

ecosystem	package	affected	fixed in
packagist	intelliants/subrion	<=4.2.1	no fix listed

Classification

Weakness

CWE-79 Improper Neutralization of Input During Web Page Generation

References

github.com /intelliants/subrion/issues/868
web, exploit, third-party-advisory
nvd.nist.gov /vuln/detail/CVE-2020-22392
advisory
github.com /intelliants/subrion
package

Sources

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.