DollarDollar through 4.4 contains a missing authorization vulnerability in add_expense() that allows authenticated users to modify other users' account balances by supplying foreign account_id values. Attackers can submit sequential account_id, destination_account_id, and group_id values to /add_expense to tamper with balances and inject expenses into foreign groups with an arbitrary payer.

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact None

Vulnerable System Integrity Impact High

Vulnerable System Availability Impact None

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact None

Integrity Impact High

Availability Impact None

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
harung1993 dollardollar unaffected
Version Status Constraints
0 affected ≤ 4.4

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Project Subscriptions

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Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://github.com/harung1993/dollardollar cve-icon cve-icon
https://github.com/harung1993/dollardollar/blob/v4.4/app.py#L4298 cve-icon cve-icon
https://github.com/harung1993/dollardollar/issues/125 cve-icon cve-icon
https://www.vulncheck.com/advisories/dollardollar-through-4.4-missing-authorization-in-add-expense-balance-tampering cve-icon cve-icon
History

Mon, 09 Nov 2026 23:45:00 +0000

Type Values Removed Values Added
Description DollarDollar through 4.4 contains a missing authorization vulnerability in add_expense() that allows authenticated users to modify other users' account balances by supplying foreign account_id values. Attackers can submit sequential account_id, destination_account_id, and group_id values to /add_expense to tamper with balances and inject expenses into foreign groups with an arbitrary payer.
Title DollarDollar through 4.4 Missing Authorization in /add_expense Balance Tampering
Weaknesses CWE-639
References
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N'}

cvssV4_0

{'score': 7.1, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-11-09T23:27:37.786Z

Reserved: 2026-11-09T22:03:02.055Z

Link: CVE-2026-125365

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-11-10T00:17:08.387

Modified: 2026-11-10T00:17:08.387

Link: CVE-2026-125365

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-11-10T00:30:20Z

Weaknesses