CVE-2018-18872 json
The Kieran O'Shea Calendar plugin before 1.3.11 for WordPress has Stored XSS via the event_title parameter in a wp-admin/admin.php?page=cal…
published 2019-05-13 7 y ago modified 2026-06-17 4 mo ago also EUVD-2018-10583
- cvss
- 5.4
- version 3.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.7%
- EPSS 0.7% chance of exploitation in 30 days, percentile 54%
- public exploits
- 0
- none known
Summary
The Kieran O'Shea Calendar plugin before 1.3.11 for WordPress has Stored XSS via the event_title parameter in a wp-admin/admin.php?page=calendar add action, or the category name during category creation at the wp-admin/admin.php?page=calendar-categories URI.
Patch / fix
- kieranoshea calendar 1.3.11
Exploit prediction
0.72% chance of exploitation in the next 30 days, higher than 54% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- wpvulndb.com https://wpvulndb.com/vulnerabilities/9141 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.0 | 5.4 | CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N |
| NVD | 2.0 | 3.5 | AV:N/AC:M/Au:S/C:N/I:P/A:N |
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
- Technology feeds
References
-
wpvulndb.com
/vulnerabilities/9141
exploit, third-party-advisory
Sources
- CVE List CVE-2018-18872
- NVD CVE-2018-18872
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.