# CVE-2026-115451: Joomla Extension - tassos.gr - File deletion through improper access control in Advanced Custom Fields extension 2.8.13-2.8.15, 3.1.4-3.1.8 and Smile Pack 1.2.7-1.2.9, 2.1.2-2.1.6

Status: published. Published: 2026-11-05. Updated: 2026-11-06.

Joomla Extension - tassos.gr - File deletion through improper access control in Advanced Custom Fields extension 2.8.13-2.8.15, 3.1.4-3.1.8 and Smile Pack 1.2.7-1.2.9, 2.1.2-2.1.6 - Anyone could delete images in the Gallery folders, including images on published articles and modules, without logging in. In ACF 3.1.7 and 3.1.8, users could also see, remove or save each other’s unsaved uploads.

## Remediation

No remediation reported in collected sources

## Affected products and versions

- tassos.gr / Advanced Custom Fields extension for Joomla: 3.1.4-3.1.8 (affected); 2.8.13-2.8.15 (affected). Source: CNA: Joomla
- tassos.gr / Smile Pack extension for Joomla: 2.1.2-2.1.6 (affected); 1.2.7-1.2.9 (affected). Source: CNA: Joomla

## Severity and prioritization

- CVSS 4.0: 6.9 (medium); CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N; source: CNA: Joomla

- CVSS 3.1: 6.5 (medium); CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N; source: ADP: CISA-ADP

- CVSS 4.0: 6.9 (medium); CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/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; source: NVD: security@joomla.org

- CVSS 3.1: 6.5 (medium); CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N; source: NVD: 134c704f-9b21-4f2e-91b3-4a467353bcc0

- CISA KEV: No listing in collected sources

- EPSS: Not available

- SSVC: exploitation none; automatable no; technical impact partial; source ADP: CISA-ADP

- Weaknesses: CWE-284

## Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

## References

- https://www.tassos.gr/ (CNA: Joomla; product)

- https://www.tassos.gr/ (security@joomla.org)

## Provenance

- CNA: Joomla: https://www.cve.org/CVERecord?id=CVE-2026-115451; retrieved 2026-11-06; source updated 2026-11-06

- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-115451; retrieved 2026-11-06; source updated 2026-11-05

Revision: 16c28da8711726bc54de2b40984486106da5382eaded434a5920e2b4bf1b38b1

Canonical: https://y2.dev/cve/CVE-2026-115451

## Agent and API access

Public CVE pages, Markdown, and JSON are free to read without an account or API key.

- Public catalog: https://y2.dev/cve/index.json. Follow nextCursor with the same search, filters, sort, and limit (1–100). A null cursor marks the end.

- WebMCP: search_cve_disclosures, get_cve_disclosure, get_cve_page_markdown, get_y2_cve_access. Available in compatible browsers.

- Cyber API: https://api.y2.dev/api/v2/cyber/cves and https://api.y2.dev/api/v2/cyber/cves/{cveId}.

- Y2 Pro or Elite: create a workspace API key with the intel:cyber scope and send Authorization: Bearer <Y2_API_KEY>. Setup: https://y2.dev/docs/api/create-key.

- x402: Pay per request without an account or API key. Omit Authorization, read the HTTP 402 PAYMENT-REQUIRED challenge, validate its current requirements, and retry with PAYMENT-SIGNATURE through an authorized payment client. These browser tools never make payments. Guide: https://y2.dev/docs/api/x402.

- OpenAPI: https://y2.dev/api/openapi.yaml. Agent access metadata: https://y2.dev/cve/agent.json.

Collected public records only. Check source status for coverage and freshness.