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CVE-2018-9034

27
FAUCET Score

CVE-2018-9034 is a reflected cross-site scripting (XSS) vulnerability found in version 4.0.4 of the Relevanssi plugin for WordPress. An authenticated attacker can inject malicious JavaScript or HTML via the 'tab' GET parameter in lib/interface.php. This vulnerability has a CVSS score of 5.4 (Medium), indicating a low attack complexity and requiring user interaction, with potential impacts on confidentiality and integrity. While not listed on CISA's KEV catalog, an exploit is publicly available on ExploitDB, though there is no evidence of active exploitation or significant community discussion.

Impacted Technologies

VendorProductVersion(s)CPE
<= 4.0.4CPE matchmatch criteria
cpe:2.3:a:relevanssi:relevanssi:*:*:*:*:*:wordpress:*:*

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
2.01%
Probability of exploitation in next 30 days
EPSS Percentile
78.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
ExploitDB: EDB-44366 · Mar 30, 2018
This CVE's current EPSS score of 0.0201 is in the 98th percentile among its peer group of 15,225 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

exploit-db.com / exploits/44366
ExploitThird Party AdvisoryVDB Entry