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TI-2026-84451 Aliases CVE-2026-121628GHSA-7qx5-gmgg-gjcv

Race condition in Bagisto lets attackers reuse single-use coupons

Priority MEDIUM 61CWE-362Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
High
Attack requirements
Present
Impact type
—
Confidentiality · integrity · availability
None · Low · None
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA.

Summary

Bagisto before 2.3.16 and from 2.4.0 before 2.4.1 contains a race condition in manageCartRule() that lets attackers redeem single-use coupons multiple times. An unauthenticated remote attacker can submit concurrent order requests to the onepage orders checkout endpoint, bypassing the unlocked times_used check to apply discounts repeatedly. The weakness is classified as CWE-362. A public exploit is linked in the references.

Written with Claude Haiku 5.5 from the sources below · 2026-11-03

Description from the CNA

Bagisto before 2.3.16 and 2.4.x before 2.4.1 contains a race condition vulnerability in manageCartRule() that allows attackers to redeem single-use coupons multiple times. Attackers can submit concurrent order requests to the onepage orders checkout endpoint, bypassing unlocked times_used checks to apply discounts repeatedly.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00273 19th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix Fixed bagisto (bagisto): 2.3.16, 2.4.1

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
Webkulbagistobefore 2.3.16; 2.4.0 to before 2.4.12.3.16, 2.4.1Patch availableCNA
  • bagisto VendorWebkul Affected before 2.3.16; 2.4.0 to before 2.4.1 Fixed in 2.3.16, 2.4.1 Patch available CNA

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPEVersionsRoleVendor
cpe:2.3:a:webkul:bagisto:*:*:*:*:*:*:*:*——Webkul
  • cpe:2.3:a:webkul:bagisto:*:*:*:*:*:*:*:* Versions — — ·Webkul

Remediation

Upgrade Bagisto to version 2.3.16 or to version 2.4.1.

Written with Claude Haiku 5.5 from the sources below · 2026-11-03

  • Fix · CNA bagisto (bagisto) Fixed in 2.3.16, 2.4.1

Timeline

  1. 2026-11-03 Threatist record created from CVE-2026-121628
  2. 2026-11-03 Alias added: GHSA-7qx5-gmgg-gjcv
  3. 2026-11-03 CISA SSVC decision points changed

References

Exploit 1

Patch 2

Other 4

  • TI-2025-41192 Unrestricted file upload in the hotel review feature in QloApps versions 1.7.0 and… CVSS 3.1CRITICAL 9.8
  • TI-2017-14326 Joomla! Component Ajax Quiz 1.8 SQL Injection CVSS 4.0HIGH 8.8
  • TI-2026-17332 Bagisto has Normal & Blind SSTI from low-privilege user when ordering product CVSS 4.0HIGH 8.9
  • TI-2023-16589 Bagisto v1.5.1 is vulnerable to Server-Side Template Injection (SSTI). CVSS 3.1HIGH 8.8
  • TI-2026-56886 UnoPim File Upload RCE via TinyMCE Image Upload Endpoint CVSS 4.0HIGH 8.6
  • TI-2026-52873 Webkul QloApps SQL injection CVSS 4.0HIGH 8.6
See all 104 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences