CVE-2025-12842
CVE-2025-12842 is a medium-severity vulnerability with a CVSS 3.x base score of 5.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-20.
Key facts
- Severity: Medium (CVSS 3.x base score 5.3)
- EPSS exploit prediction: 0% (17th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2025-198105
- Weakness: CWE-20
- Published:
- Last modified:
Description
The Booking Plugin for WordPress Appointments – Time Slot plugin for WordPress is vulnerable to unauthorized email sending in versions up to, and including, 1.4.7 due to missing validation on the tslot_appt_email AJAX action. This makes it possible for unauthenticated attackers to send appointment notification emails to arbitrary recipients with attacker-controlled text content in certain email fields, potentially enabling the site to be abused for phishing campaigns or spam distribution.
Frequently asked questions
- What is CVE-2025-12842?
- The Booking Plugin for WordPress Appointments – Time Slot plugin for WordPress is vulnerable to unauthorized email sending in versions up to, and including, 1.4.7 due to missing validation on the tslot_appt_email AJAX action. This makes it possible for unauthenticated attackers to send appointment notification emails to arbitrary recipients with attacker-controlled text content in certain email fields, potentially enabling the site to be abused for phishing campaigns or spam distribution.
- How severe is CVE-2025-12842?
- CVE-2025-12842 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability none.
- Is CVE-2025-12842 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (17th percentile), an estimate of the probability of exploitation in the next 30 days.
- How do I fix CVE-2025-12842?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- Does CVE-2025-12842 have an EU (EUVD) identifier?
- Yes. CVE-2025-12842 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-198105.
- When was CVE-2025-12842 published?
- CVE-2025-12842 was published on 2025-11-19 and last updated on 2026-06-17.
References
- https://plugins.trac.wordpress.org/browser/timeslot/tags/1.4.6/public/form/email.php#L21
- https://plugins.trac.wordpress.org/browser/timeslot/tags/1.4.6/public/form/email.php#L23
- https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3397527%40timeslot&new=3397527%40timeslot&sfp_email=&sfph_mail=
- https://www.wordfence.com/threat-intel/vulnerabilities/id/087b6943-5da8-44fe-8614-832768444178?source=cve
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