VulnerabilityPublished 4 Nov 2026

CVE-2026-57639: Roland Murg WP Booking System · Cross-site Scripting

Affects Roland Murg WP Booking SystemSource CVE Database V5

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Not known to be exploited · CVSS 7.1 High : upgrade to 2.1.0.7 soon.

Data as of 4 Nov 2026, 08:28 UTC

CVSS 3.1 base score

7.1High

How severe the flaw is on the 0–10 CVSS scale.

Thin evidence

One scorer or none

CVSS scores by source
CNA (Patchstack)	CVSS 3.1	7.1

Patch: Available – fixed in 2.1.0.7

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

Attack Vector: Network
Attack Complexity: Low
Privileges Required: None
User Interaction: Required
Scope: Changed
Confidentiality: Low
Integrity: Low
Availability: Low

Bold values are the worst case: easiest to exploit or largest impact.

Attack Vector: Network: The vulnerable component is bound to the network stack and the set of possible attackers extends beyond the other options listed, up to and including the entire Internet. Such a vulnerability is often termed 'remotely exploitable' and can be thought of as an attack being exploitable at the protocol level one or more network hops away (e.g., across one or more routers).
Attack Complexity: Low: Specialized access conditions or extenuating circumstances do not exist. An attacker can expect repeatable success against the vulnerable component.
Privileges Required: None: The attacker is unauthorized prior to attack, and therefore does not require any access to settings or files to carry out an attack.
User Interaction: Required: Successful exploitation of this vulnerability requires a user to take some action before the vulnerability can be exploited.
Scope: Changed: An exploited vulnerability can affect resources beyond the security scope managed by the security authority of the vulnerable component. In this case, the vulnerable component and the impacted component are different and managed by different security authorities.
Confidentiality: Low: There is some loss of confidentiality. Access to some restricted information is obtained, but the attacker does not have control over what information is obtained, or the amount or kind of loss is limited. The information disclosure does not cause a direct, serious loss to the impacted component.
Integrity: Low: Modification of data is possible, but the attacker does not have control over the consequence of a modification, or the amount of modification is limited. The data modification does not have a direct, serious impact on the impacted component.
Availability: Low: Performance is reduced or there are interruptions in resource availability. Even if repeated exploitation of the vulnerability is possible, the attacker does not have the ability to completely deny service to legitimate users. The resources in the impacted component are either partially available all of the time, or fully available only some of the time, but overall there is no direct, serious consequence to the impacted component.

Definitions: FIRST CVSS v3.1 specification.

Exploitation evidence

Disclosed: evidence found.
CVE published 4 Nov 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 3 Nov 2026.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponized: A Metasploit exploit module or Exploit-DB entry exists (Metasploit scanner modules do not count), or CISA SSVC or the CVSS exploit maturity reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

What to do

Upgrade Roland Murg WP Booking System to 2.1.0.7.

Affected software

Product	Affected	Fixed in
WP Booking Systemwp-booking-system	Affected <2.1.0.7	Fixed in 2.1.0.7

AI-suggested

Upgrade the WP Booking System plugin to version 2.1.0.7 or later, where this vulnerability is fixed. No additional mitigation steps are indicated by the vendor advisory.

Description

CVE-2026-57639 is a reflected cross-site scripting (XSS) vulnerability in the WP Booking System plugin by Roland Murg. It affects versions from initial releases up to 2.1.0.6. The vulnerability allows improper neutralization of input during web page generation, potentially enabling an attacker to execute malicious scripts in the context of the affected site. The issue is fixed in version 2.1.0.7.

Impact

Successful exploitation of this reflected XSS vulnerability could allow an attacker to execute arbitrary scripts in the context of the affected website, potentially leading to information disclosure, session hijacking, or other client-side impacts. The CVSS score of 7.1 reflects a high severity with impacts on confidentiality, integrity, and availability. No known exploits in the wild have been reported.

Summary

This vulnerability in the WP Booking System plugin (versions <2.1.0.7) allows reflected cross-site scripting due to improper input neutralization during web page generation. An attacker could exploit this flaw by crafting malicious input that is reflected in the web page without proper sanitization, leading to script execution in the victim's browser. The CVSS 3.1 base score is 7.1, indicating high severity, with network attack vector, low attack complexity, no privileges required, user interaction required, and impacts on confidentiality, integrity, and availability. The issue is addressed in version 2.1.0.7.

References

patchstack.com/database/wordpress/plugin/wp-booking-system/vulnerability/wordpress-wp-booking-system-plugin-2-1-0-6-cross-site-scripting-xss-vulnerability?_s_id=cve (opens in a new tab)

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What to do

Affected software

Description

AI analysisMachine-generated, updated 4 Nov 2026, 08:15 UTC

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