CVE-2021-24903: codeasily grand_flagallery Cross-site Scripting
CVSS: 5.5v3.1MediumModified
Published 28-02-2022Last modified 03-08-2024
Vulnerability summary
CVE-2021-24903 is a medium (CVSS 5.5) Cross-site Scripting vulnerability in codeasily grand_flagallery. EPSS estimates a 0.60% chance of exploitation in the next 30 days, higher than 47.8% of scored vulnerabilities. 1 public exploit is recorded.
CVSS score
5.5/10
010
Medium · v3.1 (wordfence)EPSS score
0.60%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1reference
Timeline
- 28-02-2022PublishedVulnerability first disclosed.
- 03-08-2024Last modifiedVulnerability information updated.
Description
The GRAND FlaGallery WordPress plugin through 6.1.2 does not sanitise and escape some of its gallery settings, which could allow high privilege users to perform Cross-Site scripting attacks even when the unfiltered_html capability is disallowed.
CVSS metrics
3 scores · 2 sources · 2 versionsMedium 5.5Preferred score · wordfence (Source)
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:NSources2 sources · 4.8–5.5
- NVDNIST4.8MediumCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:NDiffers
Low 3.5Preferred score · NVD (NIST)
AV:N/AC:M/Au:S/C:N/I:P/A:NSourcesSingle source
EPSS trend
Probability
0.60%
Chance of exploitation in the next 30 days
Percentile
48%
Versus all other CVEs
30-day change
0.00 pp
From 0.60% on 21-09-2026
21-09-202621-10-2026
EPSS score0.60%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundExploit Reference (wpscan.com)
Maturity: unknown
Weaknesses
CWE · root causeAffected systems
Codeasily1 product
- grand_flagallery≤ 6.1.2
Unknown1 product
Wordpress1 product
- flash-album-gallery≤ 6.1.2
3 vendors · 3 products
References
2 links- wpscan.com/vulnerability/ad67e45e-254a-46ce-a243-bfc86839446eX Refsource MISCExploitThird Party Advisory