CVE-2023-28777: learndash SQL Injection
CVSS: 8.8v3.1HighModified
Published 31-10-2023Last modified 28-04-2026
Vulnerability summary
CVE-2023-28777 is a high (CVSS 8.8) SQL Injection vulnerability in learndash. EPSS estimates a 0.68% chance of exploitation in the next 30 days, higher than 51.4% of scored vulnerabilities. Fixed in 4.5.3.1.
CVSS score
8.8/10
010
High · v3.1 (NVD)EPSS score
0.68%
0%100%
Low · -0.01 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 31-10-2023PublishedVulnerability first disclosed.
- 28-04-2026Last modifiedVulnerability information updated.
Description
Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') vulnerability in LearnDash LearnDash LMS allows SQL Injection.This issue affects LearnDash LMS: from n/a through 4.5.3.
CVSS metrics
3 scores · 3 sources · 1 versionHigh 8.8Preferred score · NVD (NIST)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HSources3 sources · 8.5–8.8
- CVE.orgCNA8.5HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:LDiffers
- wordfenceSource8.8HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS trend
Probability
0.68%
Chance of exploitation in the next 30 days
Percentile
51%
Versus all other CVEs
30-day change
-0.01 pp
From 0.68% on 19-09-2026
19-09-202619-10-2026
EPSS score0.68%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Learndash2 products
- learndash≤ 4.5.3
- learndash lms≥ n/a, ≤ 4.5.3
Wordpress1 product
- sfwd-lms≤ 4.5.3 (fixed in 4.5.3.1)
2 vendors · 3 products