CVE-2026-77647
SPIP before 4.4.20 allows unauthenticated remote attackers to execute arbitrary code, as exploited in the wild in August 2026. This is related to incorrect...
- Published
- Aug 20, 2026
- Updated
- Aug 21, 2026
- Assigning CNA
- mitre
- Evidence observed
- Oct 27, 2026
Primary CVSS
nvd · CVSS 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HLow · next 30 days
- Percentile
- 83.1%
- Model date
- Oct 27, 2026
EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.
Summary
SPIP before 4.4.20 allows unauthenticated remote attackers to execute arbitrary code, as exploited in the wild in August 2026. This is related to incorrect identification of <?php blocks, and var_export's mishandling of certain cases such as presence of a '<' character.
Sources
modules/exploits/multi/http/spip_x_spip_filtre_rce.rb
Metasploit Framework modulesDeclared conditions
- platform: Linux,Unix($.exploit_multi/http/spip_x_spip_filtre_rce.platform)
- verification: check_declared($.exploit_multi/http/spip_x_spip_filtre_rce.check)
- CVE-2026-77647Exploit
SPIP before 4.4.20 allows unauthenticated remote attackers to execute arbitrary code
Responsible use
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