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CVE-2023-1159

17
FAUCET Score

CVE-2023-1159 describes a Stored Cross-Site Scripting (XSS) vulnerability in the Bookly plugin for WordPress, affecting versions up to and including 21.5. This flaw, stemming from insufficient input sanitization, allows authenticated administrators to inject malicious web scripts into service titles. The vulnerability is rated Medium severity (CVSS 4.8), requiring high privileges and user interaction, with a potential impact of limited confidentiality and integrity compromise, specifically affecting multi-site installations or those with unfiltered_html disabled. 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
<= 21.7CPE matchmatch criteria
cpe:2.3:a:booking-wp-plugin:bookly:*:*:*:*:*:wordpress:*:*

CVSS Data

CVSS version used by this source: 3.1

4.0MEDIUM

CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:C/C:L/I:L/A:N

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
HIGH
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
1.0
Impact Score
2.7
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.37%
Probability of exploitation in next 30 days
EPSS Percentile
29.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0037 is in the 41st percentile among its peer group of 4,931 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

plugins.trac.wordpress.org / changeset
Patch
wordfence.com / threat-intel/vulnerabilities/id/d4cdf774-c93b-4b94-85ba-aa56bf401873
Third Party Advisory