CVE-2021-25025: theeventscalendar eventcalendar Cross-Site Request Forgery (CSRF)
CVSS: 4.3v3.1MediumModified
Published 17-01-2022Last modified 03-08-2024
Vulnerability summary
CVE-2021-25025 is a medium (CVSS 4.3) Cross-Site Request Forgery (CSRF) vulnerability in theeventscalendar eventcalendar. EPSS estimates a 0.35% chance of exploitation in the next 30 days, higher than 26.7% of scored vulnerabilities. 1 public exploit is recorded.
CVSS score
4.3/10
010
Medium · v3.1 (NVD)EPSS score
0.35%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1reference
Timeline
- 17-01-2022PublishedVulnerability first disclosed.
- 03-08-2024Last modifiedVulnerability information updated.
Description
The EventCalendar WordPress plugin before 1.1.51 does not have proper authorisation and CSRF checks in the add_calendar_event AJAX actions, allowing users with a role as low as subscriber to create events
CVSS metrics
3 scores · 2 sources · 2 versionsMedium 4.3Preferred score · NVD (NIST)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:NSourcesAll 2 agree
- wordfenceSource4.3MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
Medium 4.0Preferred score · NVD (NIST)
AV:N/AC:L/Au:S/C:N/I:P/A:NSourcesSingle source
EPSS trend
Probability
0.35%
Chance of exploitation in the next 30 days
Percentile
27%
Versus all other CVEs
30-day change
0.00 pp
From 0.35% on 20-09-2026
20-09-202620-10-2026
EPSS score0.35%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundExploit Reference (wpscan.com)
Maturity: unknown
Weaknesses
CWE · root cause- CWE-352Cross-Site Request Forgery (CSRF)The web application does not, or cannot, sufficiently verify whether a request was intentionally provided by the user who sent the request, which could have originated from an unauthorized actor.
- CWE-862Missing AuthorizationThe product does not perform an authorization check when an actor attempts to access a resource or perform an action.
Affected systems
Theeventscalendar1 product
- eventcalendar< 1.1.51
Unknown1 product
- eventcalendar≥ 1.1.51, < 1.1.51
Wordpress1 product
- event-calendar-wd≤ 1.1.50 (fixed in 1.1.51)
3 vendors · 3 products