SPIP up to 4.4.8 echappe_anti_xss cross site scripting

CVSS Meta Temp Score
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CTI Interest Score
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5.2$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as problematic, has been found in SPIP up to 4.4.8. The impacted element is the function echappe_anti_xss. The manipulation leads to cross site scripting. This vulnerability is documented as CVE-2026-27474. The attack can be initiated remotely. There is not any exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in SPIP up to 4.4.8 and classified as problematic. This issue affects the function echappe_anti_xss. The manipulation with an unknown input leads to a cross site scripting vulnerability. Using CWE to declare the problem leads to CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. Impacted is integrity. The summary by CVE is:

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.

The weakness was released by Dorian Piette. It is possible to read the advisory at blog.spip.net. The identification of this vulnerability is CVE-2026-27474 since 02/19/2026. The exploitation is known to be easy. The attack may be initiated remotely. It demands that the victim is doing some kind of user interaction. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1059.007 according to MITRE ATT&CK.

The vulnerability scanner Nessus provides a plugin with the ID 299646 (Linux Distros Unpatched Vulnerability : CVE-2026-27474), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 4.4.9 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (299646). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 5.2
VulDB Meta Temp Score: 5.2

VulDB Base Score: 3.5
VulDB Temp Score: 3.4
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 6.1
NVD Vector: 🔒

CNA Base Score: 6.1
CNA Vector (VulnCheck): 🔒

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Cross site scripting
CWE: CWE-79 / CWE-94 / CWE-74
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Nessus ID: 299646
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2026-27474

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: SPIP 4.4.9

Timelineinfo

02/19/2026 Advisory disclosed
02/19/2026 +0 days CVE reserved
02/19/2026 +0 days VulDB entry created
03/03/2026 +12 days VulDB entry last update

Sourcesinfo

Advisory: blog.spip.net
Researcher: Dorian Piette
Status: Confirmed

CVE: CVE-2026-27474 (🔒)
GCVE (CVE): GCVE-0-2026-27474
GCVE (VulDB): GCVE-100-346991

Entryinfo

Created: 02/19/2026 21:55
Updated: 03/03/2026 05:21
Changes: 02/19/2026 21:55 (77), 02/20/2026 16:08 (2), 03/03/2026 05:21 (14)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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