CVE-2026-110113: PublicCMS through V6.202608.a IDOR via tradeAddress/save Endpoint

Severity: medium (CVSS 4.3 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-10-13 · updated 2026-10-16
Weakness: CWE-639

Description

PublicCMS through V6.202608.a contains an insecure direct object reference vulnerability in the TradeAddressController tradeAddress/save handler that allows authenticated members to modify other members' shipping addresses. Attackers can submit another member's sequential numeric address id to overwrite its addressee, telephone and address fields, since ownership by the session user and site is never verified.

Affected products

Sanluan PublicCMS: through V6.202608.a

References

https://github.com/sanluan/PublicCMS/blob/V6.202608.a/publiccms-parent/publiccms-trade/src/main/java/com/publiccms/controller/web/trade/TradeAddressController.java#L46-L62
https://hackmd.io/@1ExmmukzRMWN7B4gQ4W-4Q/publiccms-trade-address-save-cross-user-overwrite
https://www.vulncheck.com/advisories/publiccms-through-v6-202608-a-idor-via-tradeaddress-save-endpoint
https://hackmd.io/@1ExmmukzRMWN7B4gQ4W-4Q/cve-2026-110113-publiccms-trade-address-save-cross-user-overwrite

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