CVE-2021-3731
Improper Restriction of Rendered UI Layers or Frames in ledgersmb/ledgersmb
MEDIUM
4.7
CVSS Score
Published: August 23, 2021 at 12:42 PM UTC
Updated: June 17, 2026 at 04:05 AM UTC
2 products affected across 2 vendorsDebian LinuxLedgersmb
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Severity
MEDIUM4.7
Exploit prediction
EPSS 1%
Description
LedgerSMB does not sufficiently guard against being wrapped by other sites, making it vulnerable to 'clickjacking'. This allows an attacker to trick a targetted user to execute unintended actions.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
Debian Linux· Debiandrupal
95%v < 1.8.181.1.0 ≤ v ≤ 1.1.121.2.0 ≤ v ≤ 1.2.261.3.0 ≤ v ≤ 1.3.471.4.0 ≤ v ≤ 1.4.421.5.0 ≤ v ≤ 1.5.301.6.0 ≤ v ≤ 1.6.331.7.0 ≤ v ≤ 1.7.321.8.0 ≤ v ≤ 1.8.17
Vendor states this is fixed in 1.7.33 (unaffected)
Affected range stops below 1.8.18, so it looks safe — our inference, not a vendor statement
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
References (3)
x_refsource_CONFIRMThird Party Advisory
Source: [email protected]
https://huntr.dev/bounties/5664331d-f5f8-4412-8566-408f8655888ax_refsource_CONFIRMVendor Advisory
Source: [email protected]
https://ledgersmb.org/cve-2021-3731-clickjackingVendor Advisoryx_refsource_DEBIANThird Party Advisory
Source: [email protected]
https://www.debian.org/security/2021/dsa-4962CVSS
- Attack Vector
- NETWORK
- Complexity
- LOW
- Privileges
- NONE
- User Interaction
- REQUIRED
- Scope
- CHANGED
- Confidentiality
- NONE
- Integrity
- LOW
- Availability
- NONE
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-1021
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