XSS in Syguestbook A5 Project
CVE-2019-13948
SyGuestBook A5 Version 1.2 allows stored XSS because the isValidData function in include/functions.php does not properly block XSS payloads, as demonstrated by a crafted use of the onerror attribute of an IMG element.
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.007 (51.7th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 52nd percentile — 51.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: 0.000
Affected products
- Syguestbook A5 Project — versions 1.2
Weakness classification (CWE)
References
- fragrant10.github.io/2019/02/22/SyGuestBookA5代码审计.html (Exploit, Third Party Advisory)
- github.com/fragrant10/fragrant10.github.io/blob/master/_posts/2019-02-22-SyGues… (Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2019-13948?
- CVE-2019-13948 is a medium-severity vulnerability in Syguestbook A5 Project, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2019-07-18.
- How severe is CVE-2019-13948?
- Medium severity. CVSS v3 base score is 5.4 out of 10.