How severe is CVE-2025-29471?

CVE-2025-29471 has a CVSS 3.x base score of 8.3, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2025-29471 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-2025-29471?

CVE-2025-29471 affects Nagios Log Server. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-29471?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2025-29471 have an EU (EUVD) identifier?

Yes. CVE-2025-29471 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-11098.

When was CVE-2025-29471 published?

CVE-2025-29471 was published on 2025-04-15 and last updated on 2026-06-17.

CVE-2025-29471

CVE-2025-29471 is a high-severity vulnerability in Nagios Log Server with a CVSS 3.x base score of 8.3. 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: High (CVSS 3.x base score 8.3)
EPSS exploit prediction: 6% (93rd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-11098
Weakness: CWE-79
Affected product: Nagios Log Server
Published: 2025-04-15
Last modified: 2026-06-17

Description

Cross Site Scripting vulnerability in Nagios Log Server v.2024R1.3.1 allows a remote attacker to execute arbitrary code via a payload into the Email field.

Frequently asked questions

What is CVE-2025-29471?: Cross Site Scripting vulnerability in Nagios Log Server v.2024R1.3.1 allows a remote attacker to execute arbitrary code via a payload into the Email field.
How severe is CVE-2025-29471?: CVE-2025-29471 has a CVSS 3.x base score of 8.3, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2025-29471 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-2025-29471?: CVE-2025-29471 affects Nagios Log Server. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-29471?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2025-29471 have an EU (EUVD) identifier?: Yes. CVE-2025-29471 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-11098.
When was CVE-2025-29471 published?: CVE-2025-29471 was published on 2025-04-15 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:nagios:log_server:2024:r1.3.1:*:*:*:*:*:*

More vulnerabilities in Nagios Log Server

CVE-2025-44823 — Critical (CVSS 9.9): Nagios Log Server before 2024R1.3.2 allows authenticated users to retrieve cleartext administrative API keys via a…
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CVE-2025-34274 — Critical (CVSS 9.8): Nagios Log Server versions prior to 2024R2.0.3 contain an execution with unnecessary privileges vulnerability as it…
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