Medium severity · published Oct 4, 2026
CVE-2026-105131
mayswind ezBookkeeping 1.2.0 before 2.0.1 Privilege Escalation via Token Refresh Endpoint
5.4
CVSS
0.2%
EPSS
No
On KEV
Description
ezBookkeeping 1.2.0 before 2.0.1 contains a privilege escalation vulnerability that allows attackers holding an API token to obtain a full session token via /api/v1/tokens/refresh.json. Because TokenRefreshHandler never checks token type, attackers can exchange short-lived or IP-restricted API tokens for 30-day normal session tokens that bypass API token expiry and allowlists.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 10% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
EZ
ezBookkeeping · mayswind
1.2.0 before 2.0.1 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-105131
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-105131
vendor-advisory
https://github.com/mayswind/ezbookkeeping/security/advisories/GHSA-wq25-mpcf-2mfc
patch
https://github.com/mayswind/ezbookkeeping/commit/9a92b07be8a7034665abfdb35b036210a1d57bf9
release-notes
https://github.com/mayswind/ezbookkeeping/releases/tag/v2.0.1
technical-description
https://github.com/mayswind/ezbookkeeping/blob/v2.0.0/pkg/api/tokens.go#L327-L380
product
https://github.com/mayswind/ezbookkeeping
third-party-advisory
https://www.vulncheck.com/advisories/mayswind-ezbookkeeping-1.2.0-before-2.0.1-privilege-escalation-via-token-refresh-endpoint
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