How severe is CVE-2021-46888?

CVE-2021-46888 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2021-46888 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (51st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-46888?

CVE-2021-46888 affects Hledger. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-46888?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2021-46888 published?

CVE-2021-46888 was published on 2023-05-21 and last updated on 2026-06-17.

CVE-2021-46888

CVE-2021-46888 is a medium-severity vulnerability in Hledger with a CVSS 3.x base score of 5.4. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-79.

Key facts

Severity: Medium (CVSS 3.x base score 5.4)
EPSS exploit prediction: 1% (51st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Hledger
Published: 2023-05-21
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2021-46888?: 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.
How severe is CVE-2021-46888?: CVE-2021-46888 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2021-46888 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (51st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-46888?: CVE-2021-46888 affects Hledger. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-46888?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-46888 published?: CVE-2021-46888 was published on 2023-05-21 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:hledger:hledger:*:*:*:*:*:*:*:*

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