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CVE-2015-8603

20
FAUCET Score

CVE-2015-8603 is a cross-site scripting (XSS) vulnerability affecting Serendipity versions prior to 2.0.3. This flaw allows remote attackers to inject arbitrary web script or HTML through the serendipity[entry_id] parameter during an "edit" admin action in serendipity_admin.php. It carries a medium severity CVSS score of 5.4, indicating a network-based attack requiring low privileges and user interaction, with potential for low impact on confidentiality and integrity. There is no evidence of active exploitation, publicly available exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
<= 2.0.2CPE matchmatch criteria
cpe:2.3:a:s9y:serendipity:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

5.4MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
2.3
Impact Score
2.7
CvssVersion
3.0

Exploit Intelligence

EPSS Score
1.17%
Probability of exploitation in next 30 days
EPSS Percentile
64.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0117 is in the 94th percentile among its peer group of 15,239 CVEs.

Social Chatter

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

blog.s9y.org / archives/266-Serendipity-2.0.3-released.html
Vendor Advisory
packetstormsecurity.com / files/135164/Serendipity-2.0.2-Cross-Site-Scripting.html
Exploit
seclists.org / fulldisclosure/2016/Jan/18
securityfocus.com / archive/1/537248/100/0/threaded