# CVE-2026-115452: Joomla Extension - tassos.gr - Privileged stored XSS in Advanced Custom Fields 2.8.2-2.8.15, 3.0.0-3.1.8 and Smile Pack 1.1.2-1.2.9, 2.0.0-2.1.6

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

Joomla Extension - tassos.gr - Privileged stored XSS in Advanced Custom Fields 2.8.2-2.8.15, 3.0.0-3.1.8 and Smile Pack 1.1.2-1.2.9, 2.0.0-2.1.6 - A user who could edit a Map marker label, like an article author, could add a script that ran for anyone who opened the marker.

## Remediation

No remediation reported in collected sources

## Affected products and versions

- tassos.gr / Advanced Custom Fields extension for Joomla: 3.0.0-3.1.8 (affected); 2.8.2-2.8.15 (affected). Source: CNA: Joomla
- tassos.gr / Smile Pack extension for Joomla: 2.0.0-2.1.6 (affected); 1.1.2-1.2.9 (affected). Source: CNA: Joomla

## Severity and prioritization

- CVSS 4.0: 7.5 (high); CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N/S:N/AU:N; source: CNA: Joomla

- CVSS 3.1: 6.7 (medium); CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:L; source: ADP: CISA-ADP

- CISA KEV: No listing in collected sources

- EPSS: Not available

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

- Weaknesses: CWE-79

## Exploit evidence

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

## References

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

## Provenance

- CNA: Joomla: https://www.cve.org/CVERecord?id=CVE-2026-115452; retrieved 2026-11-05; source updated 2026-11-05

Revision: 26c13acfb221118895122a658728494ce9013532654449d7d5c3f7eb37780291

Canonical: https://y2.dev/cve/CVE-2026-115452

## 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.