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CVE-2023-36816

Cross-Site Scripting (XSS) at Account creation in 2FAuth

MEDIUM
6.1
CVSS Score
Published: July 3, 2023 at 04:12 PM UTC
Updated: June 17, 2026 at 06:07 AM UTC
2 products affected across 2 vendors2FAUTH2FAuth

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Severity
MEDIUM6.1
Exploit prediction
EPSS 0.5%
SSVC
PoC

Description

2FA is a Web app to manage Two-Factor Authentication (2FA) accounts and generate their security codes. Cross site scripting (XSS) injection can be done via the account/service field. This was tested in docker-compose environment. This vulnerability has been patched in version 4.0.3.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

2FAUTH· 2FAUTH
95%
v < 4.0.3
Affected range stops below 4.0.3, so it looks safe — our inference, not a vendor statement
2FAuth· Bubka
60%
v < 4.0.3
Affected range stops below 4.0.3, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (2)

x_refsource_MISCRelease Notes
Source: [email protected]
https://github.com/Bubka/2FAuth/releases/tag/v4.0.3
x_refsource_CONFIRMExploitVendor Advisory
Source: [email protected]
https://github.com/Bubka/2FAuth/security/advisories/GHSA-cwhq-2mcq-pp9q

SSVC — Action Prioritization

SSVCPoCNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

6.1MEDIUMGitHub_M
Attack Vector
LOCAL
Complexity
LOW
Privileges
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
LOW
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-79

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