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CVE-2026-77806

Quick assessment

Affected
SPIP SPIP
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

在 SPIP 4.4.21 之前的版本中，未认证的远程攻击者可以利用此漏洞执行任意代码，该漏洞已于 2026 年 8 月在野被利用。此漏洞与通过 X-Spip-Filtre HTTP 请求头进行的代码注入有关，而 analyse_resultat_skel 函数对此头部的处理存在缺陷。

CVSS 9.8 · Critical EPSS 0.79% · P53

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 1

VendorProduct Version RangeStatus
SPIP SPIP < 4.4.21 affected
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I. Basic Information for CVE-2026-77806

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
SPIP before 4.4.21 allows unauthenticated remote attackers to execute arbitrary code, as exploited in the wild in August 2026. This is related to code injection via an X-Spip-Filtre HTTP request header that is mishandled by analyse_resultat_skel.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
对生成代码的控制不恰当(代码注入)
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
SPIP SPIP 0 ~ 4.4.21 -

II. Public POCs for CVE-2026-77806

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III. Intelligence Information for CVE-2026-77806

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Patches & Fixes for CVE-2026-77806 (3)

Security Blog Posts for CVE-2026-77806 (1)

IV. Related Vulnerabilities

Same product: SPIP
Same vendor: SPIP
Same weakness: CWE-94

V. Comments for CVE-2026-77806

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