CVE-2021-25056: ninjaforms ninja_forms Cross-site Scripting
CVSS: 4.8v3.1MediumModified
Published 04-07-2022Last modified 03-08-2024
Vulnerability summary
CVE-2021-25056 is a medium (CVSS 4.8) Cross-site Scripting vulnerability in ninjaforms ninja_forms. EPSS estimates a 0.59% chance of exploitation in the next 30 days, higher than 47% of scored vulnerabilities. 1 public exploit is recorded.
CVSS score
4.8/10
010
Medium · v3.1 (NVD)EPSS score
0.59%
0%100%
Low · +0.01 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1reference
Timeline
- 04-07-2022PublishedVulnerability first disclosed.
- 03-08-2024Last modifiedVulnerability information updated.
Description
The Ninja Forms Contact Form WordPress plugin before 3.6.10 does not sanitise and escape field labels, allowing high privilege users to perform Cross-Site Scripting attacks even when the unfiltered_html capability is disallowed.
CVSS metrics
3 scores · 2 sources · 2 versionsMedium 4.8Preferred score · NVD (NIST)
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:NSourcesAll 2 agree
- wordfenceSource4.8MediumCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
Low 3.5Preferred score · NVD (NIST)
AV:N/AC:M/Au:S/C:N/I:P/A:NSourcesSingle source
EPSS trend
Probability
0.59%
Chance of exploitation in the next 30 days
Percentile
47%
Versus all other CVEs
30-day change
+0.01 pp
From 0.58% on 19-09-2026
19-09-202619-10-2026
EPSS score0.59%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundExploit Reference (wpscan.com)
Maturity: unknown
Weaknesses
CWE · root causeAffected systems
Ninjaforms1 product
- ninja_forms< 3.6.10
Unknown1 product
- ninja forms contact form – the drag and drop form builder for wordpress≥ 3.6.10, < 3.6.10
Wordpress1 product
- ninja-forms≤ 3.6.9 (fixed in 3.6.10)
3 vendors · 3 products
References
2 links- wpscan.com/vulnerability/795acab2-f621-4662-834b-ebb6205ef7deX Refsource MISCExploitThird Party Advisory