A Cross-Site Scripting (XSS) vulnerability exists in the rcID parameter in Concrete CMS 5.4.1.1 and earlier.

published 2020-01-14 6 y ago modified 2026-06-16 4 mo ago also EUVD-2011-3150

cvss: 6.1; version 3.1, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 0.7%; EPSS 0.7% chance of exploitation in 30 days, percentile 52%
public exploits: 0; none known

Exploit prediction

0.69% chance of exploitation in the next 30 days, higher than 52% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

openwall.com https://www.openwall.com/lists/oss-security/2011/08/22/11 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
NVD	3.1	6.1	CVSS:3.1/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

Affected products

Concrete CMS Concrete CMS

Classification

Weakness

CWE-79 Improper Neutralization of Input During Web Page Generation

References

openwall.com /lists/oss-security/2011/08/22/11
exploit, mailing-list, third-party-advisory

Sources

CVE List CVE-2011-3183
NVD CVE-2011-3183

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