CVE-2024-43999: ninjaforms ninja_forms Cross-site Scripting
CVSS: 5.9v3.1MediumAnalyzed
Published 17-09-2024Last modified 28-04-2026
Vulnerability summary
CVE-2024-43999 is a medium (CVSS 5.9) Cross-site Scripting vulnerability in ninjaforms ninja_forms. EPSS estimates a 0.31% chance of exploitation in the next 30 days, higher than 22.5% of scored vulnerabilities.
CVSS score
5.9/10
010
Medium · v3.1 (CVE.org)EPSS score
0.31%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 17-09-2024PublishedVulnerability first disclosed.
- 28-04-2026Last modifiedVulnerability information updated.
Description
Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Saturday Drive Ninja Forms allows Stored XSS.This issue affects Ninja Forms: from n/a through 3.8.11.
CVSS metrics
3 scores · 3 sources · 1 versionMedium 5.9Preferred score · CVE.org (CNA)
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:LSources3 sources · 4.4–5.9
- NVDNIST4.8MediumCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:NDiffers
- wordfenceSource4.4MediumCVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:NDiffers
EPSS trend
Probability
0.31%
Chance of exploitation in the next 30 days
Percentile
23%
Versus all other CVEs
30-day change
0.00 pp
From 0.32% on 18-09-2026
18-09-202618-10-2026
EPSS score0.31%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Ninjaforms1 product
- ninja_forms< 3.8.12
Saturday drive1 product
- ninja forms≥ n/a, ≤ 3.8.11
Wordpress1 product
- ninja-forms≤ 3.8.11 (fixed in 3.8.12)
3 vendors · 3 products