CVE-2023-23991: WordPress Booking Calendar plugin <= 9.4.3 - SQL Injection
Deferred
Published 26-03-2024Last modified 28-04-2026
Vulnerability summary
CVE-2023-23991 is a high (CVSS 7.6) SQL Injection vulnerability in wordpress booking. EPSS estimates a 0.52% chance of exploitation in the next 30 days, higher than 43% of scored vulnerabilities. Fixed in 9.4.3.1.
CVSS score
7.6/10
010
High · v3.1 (CVE.org)EPSS score
0.52%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded
Timeline
- 26-03-2024PublishedVulnerability first disclosed.
- 28-04-2026Last modifiedVulnerability information updated.
Description
Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') vulnerability in WPdevelop / Oplugins Booking Calendar allows SQL Injection.This issue affects Booking Calendar: from n/a through 9.4.3.
CVSS metrics
3 scores · 3 sources · 1 versionHigh 7.6Preferred score · CVE.org (CNA)
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:LSources3 sources · 6.6–7.6
- NVDNIST7.6HighCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:L
- wordfenceSource6.6MediumCVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:HDiffers
EPSS trend
Probability
0.52%
Chance of exploitation in the next 30 days
Percentile
43%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.52% on 22-09-2026
22-09-202622-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Wordpress1 product
- booking≤ 9.4.2 (fixed in 9.4.3.1)
Wpdevelop / oplugins1 product
- booking calendar≥ n/a, ≤ 9.4.3
2 vendors · 2 products
References
2 links- patchstack.com/database/…VDB Entry