CVE-2023-4819: tammersoft shared_files Cross-site Scripting
CVSS: 7.2v3.1HighModified
Published 16-10-2023Last modified 23-04-2025
Vulnerability summary
CVE-2023-4819 is a high (CVSS 7.2) Cross-site Scripting vulnerability in tammersoft shared_files. EPSS estimates a 0.49% chance of exploitation in the next 30 days, higher than 40.8% of scored vulnerabilities. 1 public exploit is recorded.
CVSS score
7.2/10
010
High · v3.1 (wordfence)EPSS score
0.49%
0%100%
Low · +0.07 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1reference
Timeline
- 16-10-2023PublishedVulnerability first disclosed.
- 23-04-2025Last modifiedVulnerability information updated.
Description
The Shared Files WordPress plugin before 1.7.6 does not return the right Content-Type header for the specified uploaded file. Therefore, an attacker can upload an allowed file extension injected with malicious scripts.
CVSS metrics
3 scores · 3 sources · 1 versionHigh 7.2Preferred score · wordfence (Source)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:NSources3 sources · 6.1–7.2
- CVE.orgCNA6.1MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:NDiffers
- NVDNIST6.1MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:NDiffers
EPSS trend
Probability
0.49%
Chance of exploitation in the next 30 days
Percentile
41%
Versus all other CVEs
30-day change
+0.07 pp
From 0.42% on 21-09-2026
21-09-202621-10-2026
EPSS score0.49%
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
Tammersoft1 product
- shared_files< 1.7.6
Unknown1 product
- shared files< 1.7.6
Wordpress1 product
- shared-files≤ 1.7.5 (fixed in 1.7.6)
3 vendors · 3 products
References
2 links- wpscan.com/vulnerability/4423b023-cf4a-46cb-b314-7a09ac08b29aExploitVDB EntryTechnical DescriptionThird Party Advisory