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CVE-2026-27474

SPIP < 4.4.9 Cross-Site Scripting in Private Area (Incomplete Fix)

4.8 MediumFix available

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.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
Low
User interaction
Active

What an attacker can affect

Confidentiality
None
Integrity
None
Availability
None

Exploit likelihood

0.29%Up 0.3 points since Feb 20, 2026
90%50%10%1%

What each source reports

CVE List Score used 4.8

SPIP < 4.4.9 Cross-Site Scripting in Private Area (Incomplete Fix)

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.

Record
CVE-2026-27474
CVSS 4.0
4.8 MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N
CVSS 3.1
6.1 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Updated
2026-11-02
EUVDEUVD-2026-8320 4.8

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.

Record
EUVD-2026-8320
CVSS 4.0
4.8 MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N
Updated
2026-11-02
GitHub AdvisoriesGHSA-c33v-v6jp-566m 4.8

SPIP before 4.4.9 allows Cross-Site Scripting (XSS) in the private area, complementing an...

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.

Record
GHSA-c33v-v6jp-566m
CVSS 4.0
4.8 MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CVSS 3.1
5.4 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Weakness
CWE-79
Updated
2026-11-02
NVD 4.8

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.

Record
CVE-2026-27474
CVSS 4.0
4.8 MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CVSS 3.1
6.1 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Weakness
CWE-79
Updated
2026-11-02
OSV 4.8

SPIP < 4.4.9 Cross-Site Scripting in Private Area (Incomplete Fix)

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.

Record
CVE-2026-27474
CVSS 4.0
4.8 MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N
Updated
2026-11-02
OSVDEBIAN-CVE-2026-27474 4.8

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.

Record
DEBIAN-CVE-2026-27474
CVSS 4.0
4.8 MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Updated
2026-11-02
OSVUBUNTU-CVE-2026-27474 4.8

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.

Record
UBUNTU-CVE-2026-27474
CVSS 4.0
4.8 MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N
CVSS 3.1
6.1 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
spip
Debian:13
 before 4.4.11+dfsg-0+deb13u1, plus listed versions
4.4.10+dfsg-14.4.3+dfsg-14.4.3+dfsg-1+deb13u14.4.4+dfsg-14.4.5+dfsg-1
Show 4 moreShow less
4.4.6+dfsg-14.4.7+dfsg-14.4.8+dfsg-14.4.9+dfsg-1
4.4.11+dfsg-0+deb13u1
spip
Debian:14
 before 4.4.9+dfsg-1, plus listed versions
4.4.3+dfsg-14.4.4+dfsg-14.4.5+dfsg-14.4.6+dfsg-14.4.7+dfsg-14.4.8+dfsg-1
4.4.9+dfsg-1
spip
Debian:13
From an advisory covering 8 CVEs
 before 4.4.11+dfsg-0+deb13u1, plus listed versions
4.4.10+dfsg-14.4.3+dfsg-14.4.3+dfsg-1+deb13u14.4.4+dfsg-14.4.5+dfsg-1
Show 4 moreShow less
4.4.6+dfsg-14.4.7+dfsg-14.4.8+dfsg-14.4.9+dfsg-1
4.4.11+dfsg-0+deb13u1
spip
Ubuntu:Pro:16.04:LTS
 All versions, plus listed versions
3.0.20-13.0.21-13.0.21-1ubuntu13.0.21-1ubuntu1+esm1
 None known
spip
Ubuntu:Pro:18.04:LTS
 All versions, plus listed versions
3.1.4-33.1.4-4~deb9u3build0.18.04.13.1.4-4~deb9u5build0.18.04.13.1.4-4~deb9u5ubuntu0.1~esm2
 None known
spip
Ubuntu:Pro:20.04:LTS
 All versions, plus listed versions
3.2.4-13.2.5-13.2.7-13.2.7-1ubuntu0.13.2.7-1ubuntu0.1+esm2
 None known
spip
Ubuntu:22.04:LTS
 All versions, plus listed versions
3.2.11-33.2.12-14.0.2-14.0.4-1
 None known
spip
Ubuntu:24.04:LTS
 All versions, plus listed versions
4.1.11+dfsg-14.1.12+dfsg-14.1.13+dfsg-14.1.15+dfsg-14.2.9+dfsg-2
 None known
spip
Ubuntu:25.10
 All versions, plus listed versions
4.3.8+dfsg-14.4.3+dfsg-1
 None known
spip
Ubuntu:26.04:LTS
 All versions, plus listed versions
4.4.3+dfsg-14.4.6+dfsg-14.4.7+dfsg-14.4.8+dfsg-14.4.9+dfsg-1
 None known

History

History
RecordedChangedSources
affected, facts
first indexedCVE List, EUVD, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2026-27474 is a medium vulnerability (CVSS 4.8) in Spip, published February 19, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.29%, the 21st percentile. Fixed in spip 4.4.11+dfsg-0+deb13u1.

References

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