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Vulnerability Details :

CVE-2026-53981

Summary
Assigner-VulnCheck
Assigner Org ID-83251b91-4cc7-4094-a5c7-464a1b83ea10
Published At-12 Jun, 2026 | 15:42
Updated At-12 Jun, 2026 | 17:24
Rejected At-
Credits

Cap-go < v12.128.2 Account Takeover via Unauthenticated Email Change Mechanism

Cap-go prior to 12.128.2 contains an account takeover vulnerability in its email change mechanism that allows an attacker with temporary authenticated session access to change the registered email address without re-authentication such as password or MFA verification. Attackers can redirect verification to an attacker-controlled email address and subsequently perform a password reset to permanently take over the victim's account.

Vendors
-
Not available
Products
-
Metrics (CVSS)
VersionBase scoreBase severityVector
Weaknesses
Attack Patterns
Solution/Workaround
References
HyperlinkResource Type
EPSS History
Score
Latest Score
-
N/A
No data available for selected date range
Percentile
Latest Percentile
-
N/A
No data available for selected date range
Stakeholder-Specific Vulnerability Categorization (SSVC)
▼Common Vulnerabilities and Exposures (CVE)
cve.org
Assigner:VulnCheck
Assigner Org ID:83251b91-4cc7-4094-a5c7-464a1b83ea10
Published At:12 Jun, 2026 | 15:42
Updated At:12 Jun, 2026 | 17:24
Rejected At:
▼CVE Numbering Authority (CNA)
Cap-go < v12.128.2 Account Takeover via Unauthenticated Email Change Mechanism

Cap-go prior to 12.128.2 contains an account takeover vulnerability in its email change mechanism that allows an attacker with temporary authenticated session access to change the registered email address without re-authentication such as password or MFA verification. Attackers can redirect verification to an attacker-controlled email address and subsequently perform a password reset to permanently take over the victim's account.

Affected Products
Vendor
Cap-go
Product
Cap-go
Default Status
affected
Versions
Affected
  • From 0 before 12.128.2 (semver)
Unaffected
  • 6685e5f11adef257bf3d085e481f4d8ebcec602e (git)
Problem Types
TypeCWE IDDescription
CWECWE-306CWE-306 Missing Authentication for Critical Function
Type: CWE
CWE ID: CWE-306
Description: CWE-306 Missing Authentication for Critical Function
Metrics
VersionBase scoreBase severityVector
4.07.2HIGH
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:L/VA:L/SC:N/SI:N/SA:N
3.17.6HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:L
Version: 4.0
Base score: 7.2
Base severity: HIGH
Vector:
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:L/VA:L/SC:N/SI:N/SA:N
Version: 3.1
Base score: 7.6
Base severity: HIGH
Vector:
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:L
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions

Configurations

Workarounds

Exploits

Credits

finder
Naitik Gupta
Timeline
EventDate
Replaced By

Rejected Reason

References
HyperlinkResource
https://github.com/Cap-go/capgo/security/advisories/GHSA-w56g-jv78-hf79
vendor-advisory
https://github.com/Cap-go/capgo/commit/6685e5f11adef257bf3d085e481f4d8ebcec602e
patch
https://www.vulncheck.com/advisories/cap-go-account-takeover-via-unauthenticated-email-change-mechanism
third-party-advisory
Hyperlink: https://github.com/Cap-go/capgo/security/advisories/GHSA-w56g-jv78-hf79
Resource:
vendor-advisory
Hyperlink: https://github.com/Cap-go/capgo/commit/6685e5f11adef257bf3d085e481f4d8ebcec602e
Resource:
patch
Hyperlink: https://www.vulncheck.com/advisories/cap-go-account-takeover-via-unauthenticated-email-change-mechanism
Resource:
third-party-advisory
▼Authorized Data Publishers (ADP)
CISA ADP Vulnrichment
Affected Products
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions

Configurations

Workarounds

Exploits

Credits

Timeline
EventDate
Replaced By

Rejected Reason

References
HyperlinkResource
https://github.com/Cap-go/capgo/security/advisories/GHSA-w56g-jv78-hf79
exploit
Hyperlink: https://github.com/Cap-go/capgo/security/advisories/GHSA-w56g-jv78-hf79
Resource:
exploit
Information is not available yet
▼National Vulnerability Database (NVD)
nvd.nist.gov
Source:disclosure@vulncheck.com
Published At:12 Jun, 2026 | 17:16
Updated At:12 Jun, 2026 | 18:16

Cap-go prior to 12.128.2 contains an account takeover vulnerability in its email change mechanism that allows an attacker with temporary authenticated session access to change the registered email address without re-authentication such as password or MFA verification. Attackers can redirect verification to an attacker-controlled email address and subsequently perform a password reset to permanently take over the victim's account.

CISA Catalog
Date AddedDue DateVulnerability NameRequired Action
N/A
Date Added: N/A
Due Date: N/A
Vulnerability Name: N/A
Required Action: N/A
Metrics
TypeVersionBase scoreBase severityVector
Secondary4.07.2HIGH
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:L/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Secondary3.17.6HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:L
Type: Secondary
Version: 4.0
Base score: 7.2
Base severity: HIGH
Vector:
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:L/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Type: Secondary
Version: 3.1
Base score: 7.6
Base severity: HIGH
Vector:
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:L
CPE Matches

Weaknesses
CWE IDTypeSource
CWE-306Secondarydisclosure@vulncheck.com
CWE ID: CWE-306
Type: Secondary
Source: disclosure@vulncheck.com
Evaluator Description

Evaluator Impact

Evaluator Solution

Vendor Statements

References
HyperlinkSourceResource
https://github.com/Cap-go/capgo/commit/6685e5f11adef257bf3d085e481f4d8ebcec602edisclosure@vulncheck.com
N/A
https://github.com/Cap-go/capgo/security/advisories/GHSA-w56g-jv78-hf79disclosure@vulncheck.com
N/A
https://www.vulncheck.com/advisories/cap-go-account-takeover-via-unauthenticated-email-change-mechanismdisclosure@vulncheck.com
N/A
https://github.com/Cap-go/capgo/security/advisories/GHSA-w56g-jv78-hf79134c704f-9b21-4f2e-91b3-4a467353bcc0
N/A
Hyperlink: https://github.com/Cap-go/capgo/commit/6685e5f11adef257bf3d085e481f4d8ebcec602e
Source: disclosure@vulncheck.com
Resource: N/A
Hyperlink: https://github.com/Cap-go/capgo/security/advisories/GHSA-w56g-jv78-hf79
Source: disclosure@vulncheck.com
Resource: N/A
Hyperlink: https://www.vulncheck.com/advisories/cap-go-account-takeover-via-unauthenticated-email-change-mechanism
Source: disclosure@vulncheck.com
Resource: N/A
Hyperlink: https://github.com/Cap-go/capgo/security/advisories/GHSA-w56g-jv78-hf79
Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0
Resource: N/A

Change History

0
Information is not available yet

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Matching Score-4
Assigner-Xerox Corporation
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EPSS-0.22% / 44.89%
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