Multiple cross-site scripting (XSS) vulnerabilities in OSClass before 3.4.2 allow remote attackers to inject arbitrary web script or HTML v…

published 2014-10-20 12 y ago modified 2026-06-17 4 mo ago also EUVD-2014-6165

cvss: 4.3; version 2.0, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 1.9%; EPSS 1.9% chance of exploitation in 30 days, percentile 79%
public exploits: 0; none known

Multiple cross-site scripting (XSS) vulnerabilities in OSClass before 3.4.2 allow remote attackers to inject arbitrary web script or HTML via the (1) action or (2) nsextt parameter to oc-admin/index.php or the (3) nsextt parameter in an items_reported action to oc-admin/index.php.

Exploit prediction

1.89% chance of exploitation in the next 30 days, higher than 79% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

github.com https://github.com/osclass/Osclass/commit/c163bf5910d0d36424d7fc678da6b03a0e443435 referenced PoC, tagged "exploit" by a source, unverified
packetstormsecurity.com http://packetstormsecurity.com/files/128286/OsClass-3.4.1-Cross-Site-Scripting.html referenced PoC, tagged "exploit" by a source, unverified
netsparker.com https://www.netsparker.com/xss-vulnerabilities-in-osclass/ referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
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

Sources

CVE List CVE-2014-6280
NVD CVE-2014-6280

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.

Summary