Vulnerability-Lookup

CVE-2026-77806 (GCVE-0-2026-77806)

Vulnerability from cvelistv5 – Published: 2026-08-21 13:37 – Updated: 2026-08-21 17:43

KEVIntel

Summary

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.

Severity

9.8 (Critical)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

SSVC

Exploitation: none Automatable: yes Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-08-21 17:43 UTC

CWE

CWE-94 - Improper Control of Generation of Code ('Code Injection')

Assigner

mitre mitre root

References

4 references

URL	Tags
https://github.com/rapid7/metasploit-framework/pu…
https://github.com/rapid7/metasploit-framework/pu…
https://blog.spip.net/Mise-a-jour-critique-de-sec…
https://github.com/rapid7/metasploit-framework/pu…

Impacted products

1 product

Vendor	Product	Version	CPE status
SPIP	SPIP	Affected: 0 , < 4.4.21 (semver) cpe:2.3:a:spip:spip::::::::

KEVIntel

Known Exploited Vulnerability - GCVE BCP-07 Compliant

KEV entry ID: 8b0a68e2-db2e-429c-8592-acbdcb887c85

Vulnerability ID: CVE-2026-77806

Status: Confirmed

Status Updated: 2026-08-21 13:50 UTC

Exploited: Yes

Timestamps

First Seen: 2026-08-21

Asserted: 2026-08-21

Scope

Notes: 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... | Affected: SPIP / SPIP | CVSS: 9.8 (CRITICAL) | Used in malware: unknown | Not yet in CISA KEV: True

Evidence

Type: Public Report

Signal: Successful Exploitation

Confidence: 70%

Source: kevintel

Details

Feed	KEVIntel (kevintel.com)
Title	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...
Vendor	SPIP
Product	SPIP
Added Date	2026-08-21T13:50:25.867Z
Cvss Score	9.8
Epss Score	None
Cvss Severity	CRITICAL
Epss Percentile	None
Used In Malware	unknown
Ahead Of Cisa Kev	None
Not Yet In Cisa Kev	True

References

Created: 2026-08-22 14:00 UTC | Updated: 2026-08-22 14:00 UTC

Show details on NVD website

JSON

To clipboard

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FKIE_CVE-2026-77806

Vulnerability from fkie_nvd - Published: 2026-08-21 14:16 - Updated: 2026-08-21 18:16

KEVIntel

Severity

9.8 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Summary

References

	URL	Tags
	cve@mitre.org	https://blog.spip.net/Mise-a-jour-critique-de-securite-sortie-de-SPIP-4-4-21.html
	cve@mitre.org	https://github.com/rapid7/metasploit-framework/pull/21790
	cve@mitre.org	https://github.com/rapid7/metasploit-framework/pull/21790#issuecomment-5368038123
	cve@mitre.org	https://github.com/rapid7/metasploit-framework/pull/21790/commits/b16eca819abb8f1401f21d115e71e3dfc67b847c

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "SPIP",
          "vendor": "SPIP",
          "versions": [
            {
              "lessThan": "4.4.21",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
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    }
  ],
  "id": "CVE-2026-77806",
  "lastModified": "2026-08-21T18:16:52.373",
  "metrics": {
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        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 9.8,
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          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
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        "impactScore": 5.9,
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        "type": "Secondary"
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  "references": [
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      "url": "https://blog.spip.net/Mise-a-jour-critique-de-securite-sortie-de-SPIP-4-4-21.html"
    },
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GHSA-VGR8-RQWX-WQRP

Vulnerability from github – Published: 2026-08-21 15:32 – Updated: 2026-08-21 15:32

Details

Severity

9.8 (Critical)


                  
                    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2026-77806"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-94"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-08-21T14:16:53Z",
    "severity": "CRITICAL"
  },
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  "id": "GHSA-vgr8-rqwx-wqrp",
  "modified": "2026-08-21T15:32:12Z",
  "published": "2026-08-21T15:32:12Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-77806"
    },
    {
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    },
    {
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      "url": "https://github.com/rapid7/metasploit-framework/pull/21790#issuecomment-5368038123"
    },
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    {
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      "url": "https://blog.spip.net/Mise-a-jour-critique-de-securite-sortie-de-SPIP-4-4-21.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.

Action not permitted

CVE-2026-77806 (GCVE-0-2026-77806)

KEVIntel

Known Exploited Vulnerability - GCVE BCP-07 Compliant

Timestamps

Scope

Evidence

Public Report Successful Exploitation Confidence: 70% Source: kevintel

Details

References

FKIE_CVE-2026-77806

GHSA-VGR8-RQWX-WQRP

Tags

Sightings

Nomenclature