SARA / Free Tools / CVE / CVE-2023-36131

CVE-2023-36131 — PHPJabbers Availability Booking Calendar 5

PHPJabbers Availability Booking Calendar 5.0 is vulnerable to Incorrect Access Control due to improper input validation of password parameter.

CVSS

9.8 —

EPSS

0.75% (top 49.00%)

CWE

—

Published

2023-08-04 (2y 12m ago)

Last modified

2026-06-17

CVSS vector

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

01What is this vulnerability?

PHPJabbers Availability Booking Calendar 5.0 is vulnerable to Incorrect Access Control due to improper input validation of password parameter.

No structured affected-product list available — see references below for vendor advisories.

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

Patch to a fixed version listed in the vendor advisory (see references below).
Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
Hunt historical logs for exploitation indicators — see Detection signatures below.

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

No additional references available in the KB record.

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