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CVE-2015-6921

12
FAUCET Score

CVE-2015-6921 describes a Cross-site Scripting (XSS) vulnerability in the Zendesk Feedback Tab module for Drupal, specifically versions 7.x-1.x before 7.x-1.1. This vulnerability allows remote administrators with specific permissions to inject malicious web script or HTML. The CVSS score of 2.6 indicates low severity, with a network attack vector and high attack complexity, leading to a potential impact of partial integrity compromise. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage regarding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
7.x-1.xCPE matchmatch criteria
cpe:2.3:a:zendesk:zendesk_feedback_tab:7.x-1.x:dev:*:*:*:drupal:*:*

CVSS Data

CVSS version used by this source: 2.0

2.6LOW

AV:N/AC:H/Au:N/C:N/I:P/A:N

Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
Access Vector
NETWORK
Access Complexity
HIGH
Authentication
NONE
Exploitability Score
4.9
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
0.75%
Probability of exploitation in next 30 days
EPSS Percentile
51.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0075 is in the 32nd percentile among its peer group of 1,506 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.3 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

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

Remediation

Remediation records are not available for this CVE.

References

drupal.org / node/2561887
Patch
drupal.org / node/2561893
PatchVendor Advisory