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CVE-2017-18121

21
FAUCET Score

CVE-2017-18121 describes a Cross-Site Scripting (XSS) vulnerability in the consentAdmin module of SimpleSAMLphp versions through 1.14.15, affecting Debian Linux distributions. This medium-severity vulnerability (CVSS 6.1) allows an unauthenticated attacker to craft malicious links that, when clicked by a victim, can execute arbitrary JavaScript in their browser, potentially leading to information disclosure or unauthorized actions. There is no evidence of active exploitation, publicly available exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 1.14.15CPE matchmatch criteria
cpe:2.3:a:simplesamlphp:simplesamlphp:*:*:*:*:*:*:*:*
7.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*
8.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
9.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

6.1MEDIUM

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
2.8
Impact Score
2.7
CvssVersion
3.0

Exploit Intelligence

EPSS Score
1.20%
Probability of exploitation in next 30 days
EPSS Percentile
65.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0120 is in the 78th percentile among its peer group of 26,234 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

composerpatch availablevia ghsa
Product: simplesamlphp/simplesamlphpFixed in: 1.14.16

Vendor Advisories (1)

composerGHSA-fv7m-wc3v-wr3wmedium

SimpleSAMLphp XSS Vulnerability

May 14, 2022

References

lists.debian.org / debian-lts-announce/2018/02/msg00008.html
Mailing ListThird Party Advisory
simplesamlphp.org / security/201709-01
Vendor Advisory
debian.org / security/2018/dsa-4127
Third Party Advisory