Vulnerability-Lookup

CVE-2026-78064 (GCVE-0-2026-78064)

Vulnerability from cvelistv5 – Published: 2026-09-03 11:54 – Updated: 2026-09-03 12:36

Title

Joomla Extension - j2commerce.com - Anonymous cart-record tampering via inherited FOF `save` task in J2Store 1.0.0-3.3.21, 4.0.0-4.0.21, 4.1.0-4.1.6

Summary

Joomla Extension - j2commerce.com - Anonymous cart-record tampering via inherited FOF `save` task in J2Store 1.0.0-3.3.21, 4.0.0-4.0.21, 4.1.0-4.1.6 - `fof.xml` grants the `carts` view's tasks a wildcard `true` ACL, and FOF only enforces CSRF tokens on back-end HTML requests, not on front-end `format=raw` requests. `J2StoreControllerCarts` already scoped `remove()` to the caller's own session, but never overrode the generic FOF `save` task, so it remained reachable to insert new cart rows with an attacker-chosen `user_id`/`session_id`, or overwrite an existing row by id.

Severity

8.8 (High)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-09-03 12:26 UTC

CWE

CWE-639 - (Authorization Bypass Through User-Controlled Key)

Assigner

Joomla mitre root

References

1 reference

URL	Tags
https://www.j2commerce.com/	product

Impacted products

1 product

Vendor	Product	Version	CPE status
j2commerce.com	J2Store extension for Joomla	Affected: 1.0.0-3.3.21 Affected: 4.0.0-4.0.21 Affected: 4.1.0-4.1.6	guessed

Credits

Phil Taylor, mysites.guru

Show details on NVD website

JSON

To clipboard

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FKIE_CVE-2026-78064

Vulnerability from fkie_nvd - Published: 2026-09-03 13:06 - Updated: 2026-09-03 17:30

Severity

8.8 (High) - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N

Summary

References

	URL	Tags
	security@joomla.org	https://www.j2commerce.com/

Impacted products

	Vendor	Product	Version

JSON

To clipboard

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    {
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          "defaultStatus": "unaffected",
          "product": "J2Store extension for Joomla",
          "vendor": "j2commerce.com",
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            },
            {
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            },
            {
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GHSA-JJF7-8PP5-X8VW

Vulnerability from github – Published: 2026-09-03 15:32 – Updated: 2026-09-03 15:32

Details

Joomla Extension - j2commerce.com - Anonymous cart-record tampering via inherited FOF save task in J2Store 1.0.0-3.3.21, 4.0.0-4.0.21, 4.1.0-4.1.6 - fof.xml grants the carts view's tasks a wildcard true ACL, and FOF only enforces CSRF tokens on back-end HTML requests, not on front-end format=raw requests. J2StoreControllerCarts already scoped remove() to the caller's own session, but never overrode the generic FOF save task, so it remained reachable to insert new cart rows with an attacker-chosen user_id/session_id, or overwrite an existing row by id.

Severity

8.8 (High)


                  
                    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N

Show details on source website

JSON

To clipboard

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  "aliases": [
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  ],
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    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-09-03T13:06:09Z",
    "severity": "HIGH"
  },
  "details": "Joomla Extension - j2commerce.com - Anonymous cart-record tampering via inherited FOF `save` task in J2Store 1.0.0-3.3.21, 4.0.0-4.0.21, 4.1.0-4.1.6 - `fof.xml` grants the `carts` view\u0027s tasks a wildcard `true` ACL, and FOF only enforces CSRF tokens on back-end HTML requests, not on front-end `format=raw` requests. `J2StoreControllerCarts` already scoped `remove()` to the caller\u0027s own session, but never overrode the generic FOF `save` task, so it remained reachable to insert new cart rows with an attacker-chosen `user_id`/`session_id`, or overwrite an existing row by id.",
  "id": "GHSA-jjf7-8pp5-x8vw",
  "modified": "2026-09-03T15:32:13Z",
  "published": "2026-09-03T15:32:13Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-78064"
    },
    {
      "type": "WEB",
      "url": "https://www.j2commerce.com"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/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",
      "type": "CVSS_V4"
    }
  ]
}

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.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

CVE-2026-78064 (GCVE-0-2026-78064)

FKIE_CVE-2026-78064

GHSA-JJF7-8PP5-X8VW

Tags

Sightings

Nomenclature

Related by attack behaviour