# CVE-2026-121583: Sanluan PublicCMS TradePaymentService.java TradePaymentService.pendingRefund authorization

Status: published. Published: 2026-11-03. Updated: 2026-11-04.

A vulnerability was identified in Sanluan PublicCMS 5. This affects the function TradePaymentService.pendingRefund of the file publiccms-parent/publiccms-trade/src/main/java/com/publiccms/logic/service/trade/TradePaymentService.java. The manipulation of the argument userId leads to authorization bypass. The attack is possible to be carried out remotely. The exploit is publicly available and might be used. The web trade payment controller was removed starting with the 202608 series (commit 7329437).

## Remediation

No remediation reported in collected sources

## Affected products and versions

- Sanluan / PublicCMS: 5 (affected). Source: CNA: VulDB

## Severity and prioritization

- CVSS 4.0: 5.3 (medium); CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P; source: CNA: VulDB

- CVSS 3.1: 6.3 (medium); CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:C; source: CNA: VulDB

- CVSS 3.0: 6.3 (medium); CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:C; source: CNA: VulDB

- CVSS 2.0: 6.5 (medium); AV:N/AC:L/Au:S/C:P/I:P/A:P/E:POC/RL:ND/RC:C; source: CNA: VulDB

- CVSS 4.0: 2.1 (low); CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/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: cna@vuldb.com

- CVSS 3.1: 6.3 (medium); CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L; source: NVD: cna@vuldb.com

- CVSS 2.0: 6.5 (medium); AV:N/AC:L/Au:S/C:P/I:P/A:P; source: NVD: cna@vuldb.com

- CISA KEV: No listing in collected sources

- EPSS: 0.29% as of 2026-11-04; percentile 21.13%

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

- Weaknesses: CWE-639, CWE-285

## Exploit evidence

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

## References

- https://vuldb.com/vuln/430428 (CNA: VulDB; vdb-entry, technical-description)

- https://vuldb.com/vuln/430428/cti (CNA: VulDB; signature, permissions-required)

- https://vuldb.com/cve/CVE-2026-121583 (CNA: VulDB; third-party-advisory)

- https://vuldb.com/submit/1020265 (CNA: VulDB; third-party-advisory)

- https://vuldb.com/cve/CVE-2026-121583 (cna@vuldb.com)

- https://vuldb.com/submit/1020265 (cna@vuldb.com)

- https://vuldb.com/vuln/430428 (cna@vuldb.com)

- https://vuldb.com/vuln/430428/cti (cna@vuldb.com)

## Provenance

- CNA: VulDB: https://www.cve.org/CVERecord?id=CVE-2026-121583; retrieved 2026-11-04; source updated 2026-11-04

- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-121583; retrieved 2026-11-04; source updated 2026-11-04

- FIRST EPSS: https://api.first.org/data/v1/epss?cve=CVE-2026-121583; retrieved 2026-11-04; source updated Not reported

Revision: e19f5b0f065777f261a44d4a5d362153033700c236d5f8d8d8fdd6b549ffd756

Canonical: https://y2.dev/cve/CVE-2026-121583

## Agent and API access

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- 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.