CVE-2025-54729Network attack vector

Administrator-level script execution via stored XSS

Published Aug 14, 2025 · Updated May 12, 2026

Stored XSS in Webba Booking 6.0.5 and earlier allows remote authenticated users to inject scripts into WordPress pages. Published records attribute the flaw to insufficient input sanitization and output escaping but do not identify the affected field, function, or rendering path. Exploitation requires administrator-level access plus a multisite installation or disabled unfiltered_html, and the script runs when a user opens the injected page.

CVSS severity5.9
Medium
EPSS probability0.18%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stored XSS in Webba Booking 6.0.5 and earlier allows remote authenticated users to inject scripts into WordPress pages. Published records attribute the flaw to insufficient input sanitization and output escaping but do not identify the affected field, function, or rendering path. Exploitation requires administrator-level access plus a multisite installation or disabled unfiltered_html, and the script runs when a user opens the injected page.

The record

CVE
CVE-2025-54729
Published
Aug 14, 2025
Updated
May 12, 2026
Vendor
Webba Appointment Booking
Product
Webba Booking
Classifications
CWE-79, CAPEC-592, T1059.007
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Aug 14, 2025CVE publishedPublication date reported by the CVE source.
  2. May 12, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <=6.0.5 changes=[{"at":"6.0.6","status":"unaffected"}]

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Webba Appointment Booking · Webba Bookingversion=0 <=6.0.5 changes=[{"at":"6.0.6","status":"unaffected"}]

Published CVSS scores

5.9PatchstackCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:L

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CAPEC-592Stored XSS
T1059.007JavaScript/JScript

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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