How severe is CVE-2026-27474?

CVE-2026-27474 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-2026-27474 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (18th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-27474?

CVE-2026-27474 affects Spip. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-27474?

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

Does CVE-2026-27474 have an EU (EUVD) identifier?

Yes. CVE-2026-27474 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-8320.

When was CVE-2026-27474 published?

CVE-2026-27474 was published on 2026-02-19 and last updated on 2026-06-17.

CVE-2026-27474

CVE-2026-27474 is a medium-severity vulnerability in Spip 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 v4: 4.8
EPSS exploit prediction: 0% (18th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-8320
Weakness: CWE-79
Affected product: Spip
Published: 2026-02-19
Last modified: 2026-06-17

Description

SPIP before 4.4.9 allows Cross-Site Scripting (XSS) in the private area, complementing an incomplete fix from SPIP 4.4.8. The echappe_anti_xss() function was not systematically applied to input, form, button, and anchor (a) HTML tags, allowing an attacker to inject malicious scripts through these elements. This vulnerability is not mitigated by the SPIP security screen.

Frequently asked questions

What is CVE-2026-27474?: SPIP before 4.4.9 allows Cross-Site Scripting (XSS) in the private area, complementing an incomplete fix from SPIP 4.4.8. The echappe_anti_xss() function was not systematically applied to input, form, button, and anchor (a) HTML tags, allowing an attacker to inject malicious scripts through these elements. This vulnerability is not mitigated by the SPIP security screen.
How severe is CVE-2026-27474?: CVE-2026-27474 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-2026-27474 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (18th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-27474?: CVE-2026-27474 affects Spip. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-27474?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-27474 have an EU (EUVD) identifier?: Yes. CVE-2026-27474 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-8320.
When was CVE-2026-27474 published?: CVE-2026-27474 was published on 2026-02-19 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:spip:spip:*:*:*:*:*:*:*:*

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