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CVE-2025-9158

21
FAUCET Score

CVE-2025-9158 is a Stored Cross-Site Scripting (XSS) vulnerability in Request Tracker versions 5.0.4 through 5.0.8 and 6.0.0 through 6.0.1. This flaw allows an attacker to execute arbitrary JavaScript code in the context of a logged-in user by sending a specially crafted email that exploits unsanitized calendar invitation data. Rated with a CVSS score of 5.3 (Medium), the vulnerability has a low attack complexity and requires user interaction, potentially leading to limited impact on confidentiality and integrity. Currently, there is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
>= 5.0.4, <= 5.0.8CPE match
cpe:2.3:a:bestpractical:request_tracker:*:*:*:*:*:*:*:*
>= 6.0.0, <= 6.0.1CPE match
cpe:2.3:a:bestpractical:request_tracker:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 4.0

5.3MEDIUM

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
PASSIVE
VS Confidentiality
LOW
VS Integrity
LOW
VS Availability
NONE
SS Confidentiality
NONE
SS Integrity
NONE
SS Availability
NONE
Exploit Maturity
NOT_DEFINED
CvssVersion
4.0

Exploit Intelligence

EPSS Score
0.41%
Probability of exploitation in next 30 days
EPSS Percentile
33.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0041 is in the 35th percentile among its peer group of 26,219 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

Remediation records are not available for this CVE.

References

cert.pl / en/posts/2025/10/CVE-2025-9158
requesttracker.com / request-tracker