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CVE-2015-5513

11
FAUCET Score

CVE-2015-5513 describes a Cross-Site Scripting (XSS) vulnerability affecting the Shibboleth authentication module for Drupal, specifically versions 6.x-4.x prior to 6.x-4.2 and 7.x-4.x prior to 7.x-4.2. This flaw allows remote authenticated users with "Administer blocks" permission to inject arbitrary web script or HTML through unspecified vectors related to a login link. The vulnerability has a low CVSS score of 2.1, indicating a network-based attack with high access complexity, requiring authentication, and resulting in only partial integrity impact. There is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
6.x-4.0CPE matchmatch criteria
cpe:2.3:a:niif:shibboleth_authentication:6.x-4.0:*:*:*:*:drupal:*:*
6.x-4.1CPE matchmatch criteria
cpe:2.3:a:niif:shibboleth_authentication:6.x-4.1:*:*:*:*:drupal:*:*
6.x-4.2rc1CPE matchmatch criteria
cpe:2.3:a:niif:shibboleth_authentication:6.x-4.2rc1:*:*:*:*:drupal:*:*
7.x-4.0CPE matchmatch criteria
cpe:2.3:a:niif:shibboleth_authentication:7.x-4.0:*:*:*:*:drupal:*:*
7.x-4.1CPE matchmatch criteria
cpe:2.3:a:niif:shibboleth_authentication:7.x-4.1:*:*:*:*:drupal:*:*

CVSS Data

CVSS version used by this source: 2.0

2.1LOW

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

Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
Access Vector
NETWORK
Access Complexity
HIGH
Authentication
SINGLE
Exploitability Score
3.9
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
1.47%
Probability of exploitation in next 30 days
EPSS Percentile
71.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0147 is in the 76th percentile among its peer group of 1,637 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, 0.0 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 0.0 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/2511278
Patch
drupal.org / node/2511280
Patch
drupal.org / node/2511518
PatchVendor Advisory
openwall.com / lists/oss-security/2015/07/04/4