What’s Vulnerable › Vulnerabilities

CVE-2021-46888

• Severity: medium (CVSS 5.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.8% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2023-05-21 · updated 2026-06-17
• Weakness: CWE-79

Description

An issue was discovered in hledger before 1.23. A Stored Cross-Site Scripting (XSS) vulnerability exists in toBloodhoundJson that allows an attacker to execute JavaScript by encoding user-controlled values in a payload with base64 and parsing them with the atob function.

Affected products

• Hledger: before 1.23 — fixed in 1.23

How to fix

Upgrade to a fixed version: Hledger 1.23. Check the vendor advisory for mitigations.

References

• https://github.com/simonmichael/hledger/issues/1525
• https://github.com/simonmichael/hledger/pull/1663
• https://github.com/simonmichael/hledger/releases/tag/1.23
• https://www.youtube.com/watch?v=QnRO-VkfIic
• https://github.com/simonmichael/hledger/issues/1525
• https://github.com/simonmichael/hledger/pull/1663
• https://github.com/simonmichael/hledger/releases/tag/1.23
• https://www.youtube.com/watch?v=QnRO-VkfIic

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