Vulnerability-Lookup

GHSA-423J-8HF8-FP25

Vulnerability from github – Published: 2026-08-15 06:32 – Updated: 2026-08-15 06:32

Details

The Hydra Booking — Appointment Scheduling & Booking Calendar plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'first_name' parameter in all versions up to, and including, 1.2.2 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with host-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. The tfhb_host role required to exploit this vulnerability can be self-assigned by any visitor via the plugin's public Signup shortcode, making this effectively exploitable by unauthenticated users who complete the registration flow.

Severity

6.4 (Medium)


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

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{
  "affected": [],
  "aliases": [
    "CVE-2026-15948"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-79"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-08-15T04:18:08Z",
    "severity": "MODERATE"
  },
  "details": "The Hydra Booking \u2014 Appointment Scheduling \u0026 Booking Calendar plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the \u0027first_name\u0027 parameter in all versions up to, and including, 1.2.2 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with host-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. The tfhb_host role required to exploit this vulnerability can be self-assigned by any visitor via the plugin\u0027s public Signup shortcode, making this effectively exploitable by unauthenticated users who complete the registration flow.",
  "id": "GHSA-423j-8hf8-fp25",
  "modified": "2026-08-15T06:32:05Z",
  "published": "2026-08-15T06:32:05Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-15948"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/hydra-booking/trunk/admin/Controller/HostsController.php#L495"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/hydra-booking/trunk/admin/Controller/HostsController.php#L77"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/hydra-booking/trunk/app/Content/Archive/archive-page-tfhb-host.php#L30"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/changeset?reponame=\u0026old=3632543%40hydra-booking\u0026new=3632543%40hydra-booking"
    },
    {
      "type": "WEB",
      "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/8331fe3f-e943-4f4c-887f-761f3e18eb79?source=cve"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2026-15948 (GCVE-0-2026-15948)

Vulnerability from cvelistv5 – Published: 2026-08-15 03:25 – Updated: 2026-08-17 16:07

Title

Hydra Booking <= 1.2.2 - Authenticated (Host+) Stored Cross-Site Scripting via 'first_name' Parameter

Summary

Severity

6.4 (Medium)


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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-08-17 14:13 UTC

CWE

CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Assigner

Wordfence mitre root

References

5 references

URL	Tags
https://www.wordfence.com/threat-intel/vulnerabil…
https://plugins.trac.wordpress.org/browser/hydra-…
https://plugins.trac.wordpress.org/browser/hydra-…
https://plugins.trac.wordpress.org/browser/hydra-…
https://plugins.trac.wordpress.org/changeset?repo…

Impacted products

1 product

Vendor	Product	Version
themefic	Hydra Booking — Appointment Scheduling & Booking Calendar	Affected: 0 , ≤ 1.2.2 (semver)

Credits

Wordfence PRISM

Show details on NVD website

JSON

To clipboard

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  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-15948",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-08-17T14:13:57.641009Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
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        "providerMetadata": {
          "dateUpdated": "2026-08-17T16:07:11.999Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Hydra Booking \u2014 Appointment Scheduling \u0026 Booking Calendar",
          "vendor": "themefic",
          "versions": [
            {
              "lessThanOrEqual": "1.2.2",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
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        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "The Hydra Booking \u2014 Appointment Scheduling \u0026 Booking Calendar plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the \u0027first_name\u0027 parameter in all versions up to, and including, 1.2.2 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with host-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. The tfhb_host role required to exploit this vulnerability can be self-assigned by any visitor via the plugin\u0027s public Signup shortcode, making this effectively exploitable by unauthenticated users who complete the registration flow."
        }
      ],
      "metrics": [
        {
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            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N",
            "version": "3.1"
          }
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      ],
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          "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/8331fe3f-e943-4f4c-887f-761f3e18eb79?source=cve"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/hydra-booking/trunk/app/Content/Archive/archive-page-tfhb-host.php#L30"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/hydra-booking/trunk/admin/Controller/HostsController.php#L495"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/hydra-booking/trunk/admin/Controller/HostsController.php#L77"
        },
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          "time": "2026-07-16T13:16:42.000Z",
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          "time": "2026-08-14T15:06:20.000Z",
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    "datePublished": "2026-08-15T03:25:58.930Z",
    "dateReserved": "2026-07-16T13:01:32.821Z",
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    "state": "PUBLISHED"
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  "dataType": "CVE_RECORD",
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Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.

Action not permitted

GHSA-423J-8HF8-FP25

CVE-2026-15948 (GCVE-0-2026-15948)

Tags

Sightings

Nomenclature