XSS in Ledgersmb
CVE-2021-3693
LedgerSMB does not check the origin of HTML fragments merged into the browser's DOM. By sending a specially crafted URL to an authenticated user, this flaw can be abused for remote code execution and information disclosure.
Vulnerability class: XSS (Cross-Site Scripting)
EPSS: 0.030 (86.0th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Ledgersmb
- Ledgersmb Ledgersmb/ledgersmb — versions 1.7.33, unspecified
- Debian Debian_linux — versions 10.0, 11.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security@huntr.dev (x_refsource_CONFIRM, Third Party Advisory)
- security@huntr.dev (Patch, x_refsource_MISC, Vendor Advisory)
- security@huntr.dev (vendor-advisory, Third Party Advisory, x_refsource_DEBIAN)
Frequently asked questions
- What is CVE-2021-3693?
- CVE-2021-3693 is a high-severity vulnerability in Ledgersmb, classified under Cross-site Scripting. CVSS score: 8.8/10. Published 2021-08-23.
- How severe is CVE-2021-3693?
- High severity. CVSS v3 base score is 8.8 out of 10.
- Is CVE-2021-3693 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.