Zen Cart PayPal IPN paypaldp.php zen_db_perform sql injection

A vulnerability was found in Zen Cart up to 2.2.2. This impacts the function zen_db_perform in the library includes/modules/payment/paypaldp.php of the component PayPal IPN Handler. Performing a manipulation of the argument txn_id results in sql injection. The attack can be initiated remotely. The exploit has been made public and could be used. The patch is named 557154f4fa025f51553094f47b06aa024220c48f. It is suggested to install a patch to address this issue.

Source published

12 Oct 2026 10:45:10 UTC

Source modified

13 Oct 2026 18:49:59 UTC

Observed here

23 Oct 2026 15:48:27 UTC

Source terms

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CVSS 4.0 · 6.9 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P

CVSS 3.1 · 7.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C

CVSS 3.0 · 7.3 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C

CVSS 2.0 · 7.5 AV:N/AC:L/Au:N/C:P/I:P/A:P/E:POC/RL:OF/RC:C