CVE-2022-4320 json
WordPress Events Calendar Plugin < 1.4.5 - Multiple Reflected XSS
published 2023-01-16 3 y ago modified 2026-06-17 4 mo ago also EUVD-2022-51673
- cvss
- 6.1
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.9%
- EPSS 0.9% chance of exploitation in 30 days, percentile 59%
- public exploits
- 0
- none known, plus a Nuclei check
Summary
The WordPress Events Calendar WordPress plugin before 1.4.5 does not sanitize and escapes a parameter before outputting it back in the page, leading to a Reflected Cross-Site Scripting which could be used against both unauthenticated and authenticated users (such as high-privilege ones like admin).
Patch / fix
- Unknown WordPress Events Calendar Plugin 1.4.5
CISA SSVC
- Exploitation
- Proof of concept is public
- Automatable
- no
- Technical impact
- partial
- Assessed
- 19 mo ago
Exploit prediction
0.90% chance of exploitation in the next 30 days, higher than 59% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- Nuclei template WordPress Events Calendar <1.4.5 - Cross-Site Scripting nuclei detection template
- wpscan.com https://wpscan.com/vulnerability/f1244c57-d886-4a6e-8cdb-18404e8c153c referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CISA ADP | 3.1 | 6.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
| NVD | 3.1 | 6.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
| CNA | 3.1 | 6.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
Affected products
- Unknown WordPress Events Calendar Plugin
Classification
- Technology feeds
References
-
wpscan.com
/vulnerability/f1244c57-d886-4a6e-8cdb-18404e8c153c
exploit, vdb-entry, technical-description, third-party-advisory
Sources
- CVE List CVE-2022-4320
- NVD CVE-2022-4320
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.