XSS in Projectsend
CVE-2023-53906
projectSend r1605 contains a stored cross-site scripting vulnerability that allows authenticated administrators to inject malicious JavaScript through the custom assets configuration page. Attackers can craft a JavaScript payload in the custom assets section that will execute when other users load the affected page, enabling persistent script injection.
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.8 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.003 (21.8th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 22nd percentile — 21.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: +0.000
Affected products
- Projectsend — versions r1605
Weakness classification (CWE)
References
- www.exploit-db.com/exploits/51518 (Exploit, Third Party Advisory, exploit)
- www.projectsend.org/ (Product, product)
- www.vulncheck.com/advisories/projectsend-stored-cross-site-scripting-via-custom… (Exploit, Third Party Advisory, third-party-advisory)
Frequently asked questions
- What is CVE-2023-53906?
- CVE-2023-53906 is a medium-severity vulnerability in Projectsend, classified under Cross-site Scripting. CVSS score: 4.8/10. Published 2025-12-17.
- How severe is CVE-2023-53906?
- Medium severity. CVSS v3 base score is 4.8 out of 10.