How severe is CVE-2021-26475?

CVE-2021-26475 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2021-26475 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 6% (93rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-26475?

CVE-2021-26475 affects Eprints. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-26475?

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

When was CVE-2021-26475 published?

CVE-2021-26475 was published on 2021-03-01 and last updated on 2026-06-17.

CVE-2021-26475

CVE-2021-26475 is a medium-severity vulnerability in Eprints with a CVSS 3.x base score of 6.1. 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 6.1)
CVSS v2: 4.3
EPSS exploit prediction: 6% (93rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Eprints
Published: 2021-03-01
Last modified: 2026-06-17

Description

EPrints 3.4.2 exposes a reflected XSS opportunity in the via a cgi/cal URI.

Frequently asked questions

What is CVE-2021-26475?: EPrints 3.4.2 exposes a reflected XSS opportunity in the via a cgi/cal URI.
How severe is CVE-2021-26475?: CVE-2021-26475 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2021-26475 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 6% (93rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-26475?: CVE-2021-26475 affects Eprints. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-26475?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-26475 published?: CVE-2021-26475 was published on 2021-03-01 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:eprints:eprints:3.4.2:*:*:*:*:*:*:*

More vulnerabilities in Eprints

CVE-2021-3342 — Critical (CVSS 9.8): EPrints 3.4.2 allows remote attackers to read arbitrary files and possibly execute commands via crafted LaTeX input to…
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CVE-2021-26476 — Critical (CVSS 9.8): EPrints 3.4.2 allows remote attackers to execute OS commands via crafted LaTeX input to a cgi/cal?year= URI.
CVE-2021-26704 — High (CVSS 8.8): EPrints 3.4.2 allows remote attackers to execute arbitrary commands via crafted input to the verb parameter in a…
CVE-2021-26702 — Medium (CVSS 6.1): EPrints 3.4.2 exposes a reflected XSS opportunity in the dataset parameter to the cgi/dataset_dictionary URI.

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