Vulnerability-Lookup

GHSA-VQRM-V8PV-6PVF

Vulnerability from github – Published: 2026-06-15 15:31 – Updated: 2026-06-15 15:31

Details

WordPress appointment-booking-calendar 1.1.24 contains multiple privilege escalation vulnerabilities that allow unauthenticated attackers to modify calendar settings and inject persistent cross-site scripting payloads through the admin.php page parameters. Attackers can inject malicious JavaScript into the 'ict' and 'ics' options or the calendar 'name' parameter via GET requests to execute arbitrary scripts when the calendar is displayed or accessed in the administration interface.

Severity

7.2 (High)


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

5.1 (Medium)


                  
                    CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N

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JSON

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{
  "affected": [],
  "aliases": [
    "CVE-2016-20084"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-79"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-06-15T14:16:32Z",
    "severity": "MODERATE"
  },
  "details": "WordPress appointment-booking-calendar 1.1.24 contains multiple privilege escalation vulnerabilities that allow unauthenticated attackers to modify calendar settings and inject persistent cross-site scripting payloads through the admin.php page parameters. Attackers can inject malicious JavaScript into the \u0027ict\u0027 and \u0027ics\u0027 options or the calendar \u0027name\u0027 parameter via GET requests to execute arbitrary scripts when the calendar is displayed or accessed in the administration interface.",
  "id": "GHSA-vqrm-v8pv-6pvf",
  "modified": "2026-06-15T15:31:32Z",
  "published": "2026-06-15T15:31:32Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2016-20084"
    },
    {
      "type": "WEB",
      "url": "https://www.exploit-db.com/exploits/39341"
    },
    {
      "type": "WEB",
      "url": "https://www.vulncheck.com/advisories/wordpress-appointment-booking-calendar-privilege-escalation-xss"
    },
    {
      "type": "WEB",
      "url": "http://wordpress.dwbooster.com/calendars/booking-calendar-contact-form"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
      "type": "CVSS_V4"
    }
  ]
}

CVE-2016-20084 (GCVE-0-2016-20084)

Vulnerability from cvelistv5 – Published: 2026-06-15 12:00 – Updated: 2026-07-15 01:23

Title

WordPress appointment-booking-calendar 1.1.24 Privilege Escalation XSS

Summary

Severity

5.1 (Medium)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N

7.2 (High)


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

SSVC

Exploitation: poc Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-06-15 22:02 UTC

CWE

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

Assigner

VulnCheck mitre root

References

3 references

URL	Tags
https://www.exploit-db.com/exploits/39341	exploit
http://wordpress.dwbooster.com/calendars/booking-…	product
https://www.vulncheck.com/advisories/wordpress-ap…	third-party-advisory

Impacted products

1 product

Vendor	Product	Version
dwbooster	Booking Calendar Contact	Affected: 0 , ≤ 1.1.24 (semver) cpe:2.3:a:codepeople:booking_calendar_contact_form::::::wordpress::*

Date Public

2016-01-28 00:00

Credits

Joaquin Ramirez Martinez [ i0 security-lab]

Show details on NVD website

JSON

To clipboard

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                "options": [
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                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-06-15T22:02:39.894369Z",
                "version": "2.0.3"
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          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
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        "title": "CISA ADP Vulnrichment"
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          "versions": [
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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.

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.
Browse all ATT&CK techniques and the vulnerabilities related to each.

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GHSA-VQRM-V8PV-6PVF

CVE-2016-20084 (GCVE-0-2016-20084)

Tags

Sightings

Nomenclature

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