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PatchSiren cyber security CVE debrief

CVE-2026-57388 Themefic CVE debrief

CVE-2026-57388 is a Stored Cross-Site Scripting (XSS) vulnerability in the Hydra Booking plugin for WordPress. The vulnerability affects versions from n/a through 1.1.44. This issue allows an attacker to inject malicious scripts into web pages, potentially leading to unauthorized actions or data theft. The vulnerability has a CVSS score of 7.1 and is considered HIGH severity. Administrators and users of the Hydra Booking plugin for WordPress should be aware of this vulnerability and take immediate action to protect their installations. To address this vulnerability, it is essential to update the Hydra Booking plugin to a version beyond 1.1.44 and implement input validation and output encoding to prevent XSS attacks. Additionally, monitoring for suspicious activity and implementing a Web Application Firewall (WAF) can help detect and prevent attacks. It is also crucial to regularly update and patch WordPress and its plugins to prevent exploitation of known vulnerabilities.

Vendor
Themefic
Product
Hydra Booking
CVSS
HIGH 7.1
CISA KEV
Not listed in stored evidence
Original CVE published
2026-07-13
Original CVE updated
2026-07-13
Advisory published
2026-07-13
Advisory updated
2026-07-13

Who should care

Administrators and users of the Hydra Booking plugin for WordPress should be aware of this vulnerability and take immediate action to protect their installations.

Technical summary

The CVE-2026-57388 vulnerability is classified as a Stored XSS issue, which occurs when user input is not properly sanitized and is stored on the server. In this case, the Hydra Booking plugin for WordPress fails to neutralize input during web page generation, allowing attackers to inject malicious scripts. The vulnerability has a CVSS score of 7.1 and is considered HIGH severity.

Defensive priority

High priority should be given to updating the Hydra Booking plugin to a version that addresses this vulnerability.

Recommended defensive actions

  • Update the Hydra Booking plugin to a version beyond 1.1.44.
  • Implement input validation and output encoding to prevent XSS attacks.
  • Monitor for suspicious activity and implement a Web Application Firewall (WAF) to detect and prevent attacks.
  • Regularly update and patch WordPress and its plugins to prevent exploitation of known vulnerabilities.

Evidence notes

The CVE record was published on 2026-07-13T10:16:32.040Z and has not been modified since then. The NVD entry is currently in the 'Received' status. Patchstack reported this vulnerability, providing details about the affected plugin and version range.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-57388 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-57388

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-57388 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-57388

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.