OTCMS 3.81 allows XSS via the mode parameter in an apiRun.php?mudi=autoRun request.

published 2019-07-19 7 y ago modified 2026-06-17 4 mo ago also EUVD-2019-5233

cvss: 6.1; version 3.0, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 0.8%; EPSS 0.8% chance of exploitation in 30 days, percentile 58%
public exploits: 0; none known

Exploit prediction

0.85% chance of exploitation in the next 30 days, higher than 58% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

cisk123456.blogspot.com https://cisk123456.blogspot.com/2019/05/otcms-xss.html referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
NVD	3.0	6.1	CVSS:3.0/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

cisk123456.blogspot.com /2019/05/otcms-xss.html
exploit, third-party-advisory

Sources

CVE List CVE-2019-13971
NVD CVE-2019-13971

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