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CVE-2018-8815

28
FAUCET Score

CVE-2018-8815 is a cross-site scripting (XSS) vulnerability found in the gallery function of Alkacon OpenCMS version 10.5.3. An authenticated attacker can inject arbitrary web script or HTML by uploading a malicious SVG image. This vulnerability has a CVSS score of 4.6 (Medium), indicating a low attack complexity and requiring user interaction, with potential impacts including limited confidentiality and integrity compromise. While there is no evidence of active exploitation, a proof-of-concept exploit is available on ExploitDB, and the CVE has received minimal community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
10.5.3CPE matchmatch criteria
cpe:2.3:a:alkacon:opencms:10.5.3:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

4.6MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
2.1
Impact Score
2.5
CvssVersion
3.0

Exploit Intelligence

EPSS Score
1.41%
Probability of exploitation in next 30 days
EPSS Percentile
69.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
ExploitDB: EDB-44392 · Apr 2, 2018
This CVE's current EPSS score of 0.0140 is in the 96th percentile among its peer group of 15,224 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

github.com / alkacon/opencms-core/issues/587
ExploitThird Party Advisory
exploit-db.com / exploits/44392
ExploitThird Party AdvisoryVDB Entry