How severe is CVE-2025-45806?

CVE-2025-45806 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-2025-45806 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (15th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2025-45806?

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

Does CVE-2025-45806 have an EU (EUVD) identifier?

Yes. CVE-2025-45806 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-209373.

When was CVE-2025-45806 published?

CVE-2025-45806 was published on 2026-04-09 and last updated on 2026-06-17.

CVE-2025-45806

CVE-2025-45806 is a medium-severity vulnerability 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)
EPSS exploit prediction: 0% (15th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-209373
Weakness: CWE-79
Published: 2026-04-09
Last modified: 2026-06-17

Description

A cross-site scripting (XSS) vulnerability in rrweb-snapshot before v2.0.0-alpha.18 allows attackers to execute arbitrary web scripts or HTML via a crafted payload.

Frequently asked questions

What is CVE-2025-45806?: A cross-site scripting (XSS) vulnerability in rrweb-snapshot before v2.0.0-alpha.18 allows attackers to execute arbitrary web scripts or HTML via a crafted payload.
How severe is CVE-2025-45806?: CVE-2025-45806 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-2025-45806 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (15th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2025-45806?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-45806 have an EU (EUVD) identifier?: Yes. CVE-2025-45806 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-209373.
When was CVE-2025-45806 published?: CVE-2025-45806 was published on 2026-04-09 and last updated on 2026-06-17.

References

Other CWE-79 (Cross-site Scripting (XSS)) vulnerabilities

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CVE-2023-45138 — Critical (CVSS 10.0): Change Request is an pplication allowing users to request changes on a wiki without publishing the changes directly.…
CVE-2022-4361 — Critical (CVSS 10.0): Keycloak, an open-source identity and access management solution, has a cross-site scripting (XSS) vulnerability in the…

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