CVE-2021-46888

Name: CVE-2021-46888
Creator: NVD / NIST
Published: 2023-05-21T20:15:09.24+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.4/10EPSS 0.76%

Last modified Jun 17, 2026

CVE-2021-46888 is a medium-severity vulnerability rated 5.4/10 on the CVSS scale. 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.. EPSS estimates a 0.76% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

5.4/10

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

EPSS Probability

0.76%

50.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Hledger	Hledger	< 1.23

References

https://github.com/simonmichael/hledger/issues/1525Exploit, Issue Tracking, Vendor Advisory
https://github.com/simonmichael/hledger/pull/1663Exploit, Issue Tracking, Patch, Third Party Advisory
https://github.com/simonmichael/hledger/releases/tag/1.23Release Notes
https://www.youtube.com/watch?v=QnRO-VkfIicExploit, Third Party Advisory
https://github.com/simonmichael/hledger/issues/1525Exploit, Issue Tracking, Vendor Advisory
https://github.com/simonmichael/hledger/pull/1663Exploit, Issue Tracking, Patch, Third Party Advisory
https://github.com/simonmichael/hledger/releases/tag/1.23Release Notes
https://www.youtube.com/watch?v=QnRO-VkfIicExploit, Third Party Advisory

Timeline

Published: May 21, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-46888?

How severe is CVE-2021-46888?

CVE-2021-46888 has a CVSS score of 5.4/10 (MEDIUM severity). The EPSS model estimates a 0.76% probability of exploitation in the next 30 days.

How do I fix CVE-2021-46888?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-46888?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST