October CMS Cross-site Scripting vulnerability

published 2024-02-08 2 y ago modified 2026-06-17 4 mo ago also GHSA-gcgj-qh8p-57hm , EUVD-2024-0639

cvss: 7.8; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.4%; EPSS 0.4% chance of exploitation in 30 days, percentile 29%
public exploits: 0; none known

Cross Site Scripting vulnerability found in October CMS v.3.2.0 allows local attacker to execute arbitrary code via the file type .mp3

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: partial
Assessed: 2 y ago (2024-02-11)

Exploit prediction

0.36% chance of exploitation in the next 30 days, higher than 29% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

cupc4k3.medium.com https://cupc4k3.medium.com/cve-2023-25365-xss-via-file-upload-bypass-ddf4d2a106a7 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
CISA ADP	3.1	7.8	CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
NVD	3.1	7.8	CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CNA	3.1	7.8	CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
GitHub	3.1	7.8	CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected packages

ecosystem	package	affected	fixed in
packagist	october/october	<=3.2.0	no fix listed

Classification

Weakness

CWE-434 Unrestricted Upload of File with Dangerous Type
CWE-79 Improper Neutralization of Input During Web Page Generation

References

cupc4k3.medium.com /cve-2023-25365-xss-via-file-upload-bypass-ddf4d2a106a7
web, exploit, press/media-coverage, third-party-advisory
nvd.nist.gov /vuln/detail/CVE-2023-25365
advisory
github.com /octobercms/october
package

Sources

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