CVE-2023-39311: avada fusion_builder Cross-Site Request Forgery (CSRF)
CVSS: 8.8v3.1HighModified
Published 27-03-2024Last modified 28-04-2026
Vulnerability summary
CVE-2023-39311 is a high (CVSS 8.8) Cross-Site Request Forgery (CSRF) vulnerability in avada fusion_builder. EPSS estimates a 0.26% chance of exploitation in the next 30 days, higher than 16.8% of scored vulnerabilities. Fixed in 3.11.2.
CVSS score
8.8/10
010
High · v3.1 (NVD)EPSS score
0.26%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 27-03-2024PublishedVulnerability first disclosed.
- 28-04-2026Last modifiedVulnerability information updated.
Description
Cross-Site Request Forgery (CSRF) vulnerability in ThemeFusion Fusion Builder.This issue affects Fusion Builder: from n/a through 3.11.1.
CVSS metrics
3 scores · 3 sources · 1 versionHigh 8.8Preferred score · NVD (NIST)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:HSources3 sources · 6.5–8.8
- CVE.orgCNA7.1HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:HDiffers
- wordfenceSource6.5MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:NDiffers
EPSS trend
Probability
0.26%
Chance of exploitation in the next 30 days
Percentile
17%
Versus all other CVEs
30-day change
0.00 pp
From 0.26% on 21-09-2026
21-09-202621-10-2026
EPSS score0.26%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Avada1 product
- fusion_builder≤ 3.11.1
Themefusion1 product
- fusion builder≥ n/a, ≤ 3.11.1
Wordpress1 product
- fusion-builder≤ 3.11.1 (fixed in 3.11.2)
3 vendors · 3 products