CVE-2023-28784: contest_gallery Cross-site Scripting
CVSS: 7.1v3.1HighModified
Published 22-06-2023Last modified 28-04-2026
Vulnerability summary
CVE-2023-28784 is a high (CVSS 7.1) Cross-site Scripting vulnerability in contest_gallery. EPSS estimates a 0.38% chance of exploitation in the next 30 days, higher than 30.7% of scored vulnerabilities.
CVSS score
7.1/10
010
High · v3.1 (CVE.org)EPSS score
0.38%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 22-06-2023PublishedVulnerability first disclosed.
- 28-04-2026Last modifiedVulnerability information updated.
Description
Unauth. Reflected Cross-Site Scripting (XSS) vulnerability in Contest Gallery plugin <= 21.1.2 versions.
CVSS metrics
3 scores · 3 sources · 1 versionHigh 7.1Preferred score · CVE.org (CNA)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:LSources3 sources · 6.1–7.1
- NVDNIST6.1MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:NDiffers
- wordfenceSource6.1MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:NDiffers
EPSS trend
Probability
0.38%
Chance of exploitation in the next 30 days
Percentile
31%
Versus all other CVEs
30-day change
0.00 pp
From 0.38% on 19-09-2026
19-09-202619-10-2026
EPSS score0.38%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Contest_gallery1 product
- contest_gallery≥ n/a, ≤ 21.1.2
Contest-gallery1 product
- contest_gallery≤ 21.1.2
Wordpress1 product
- contest-gallery≤ 21.1.2 (fixed in 21.1.2.1)
3 vendors · 3 products