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CVE-2015-4639

22
FAUCET Score

CVE-2015-4639 describes a cross-site scripting (XSS) vulnerability in the opac-addbybiblionumber.pl script within Koha versions 3.14.x, 3.16.x, and 3.20.x. This flaw allows remote attackers to inject arbitrary web script or HTML by manipulating a list name. The vulnerability carries a high CVSS score of 8.8, indicating a critical risk due to its network-based attack vector, low attack complexity, and potential for high impact on confidentiality, integrity, and availability. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
3.14.00CPE matchmatch criteria
cpe:2.3:a:koha:koha:3.14.00:*:*:*:*:*:*:*
3.14.00CPE matchmatch criteria
cpe:2.3:a:koha:koha:3.14.00:alpha1:*:*:*:*:*:*
3.14.00CPE matchmatch criteria
cpe:2.3:a:koha:koha:3.14.00:alpha2:*:*:*:*:*:*
3.14.00CPE matchmatch criteria
cpe:2.3:a:koha:koha:3.14.00:beta:*:*:*:*:*:*
3.14.01CPE matchmatch criteria
cpe:2.3:a:koha:koha:3.14.01:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

8.8HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
0.62%
Probability of exploitation in next 30 days
EPSS Percentile
46.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0062 is in the 47th percentile among its peer group of 14,875 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.1 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

bugs.koha-community.org / bugzilla3/show_bug.cgi
Issue TrackingThird Party Advisory
koha-community.org / koha-3-14-16-released
koha-community.org / security-release-koha-3-16-12
koha-community.org / security-release-koha-3-20-1