CVE-2023-31287

HIGH
7.8
CVSS Score
Published: April 27, 2023 at 12:00 AM UTC
Updated: June 17, 2026 at 05:56 AM UTC
2 products affected across 1 vendorStartsharpSerene

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Severity
HIGH7.8
Exploit prediction
EPSS 0.4%
SSVC
No known exploit

Description

An issue was discovered in Serenity Serene (and StartSharp) before 6.7.0. Password reset links are sent by email. A link contains a token that is used to reset the password. This token remains valid even after the password reset and can be used a second time to change the password of the corresponding user. The token expires only 3 hours after issuance and is sent as a query parameter when resetting. An attacker with access to the browser history can thus use the token again to change the password in order to take over the account.

Affected

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

v < 6.7.0
Affected range stops below 6.7.0, so it looks safe — our inference, not a vendor statement
v < 6.7.0
Affected range stops below 6.7.0, 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:

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

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

CVSS

7.8HIGHCISA-ADP
Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-640

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