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TI-2026-65010 Aliases CVE-2026-100872GHSA-2hp7-mfr2-4fg8

Sylius 2.x before 2.1.16 and 2.2.9 Payment Amount Overwrite

Priority HIGH 77CWE-345Published · Updated

Key facts

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

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-345.

Summary

Sylius versions before 2.1.16 and 2.2.9 fail to validate payment amounts during cart recalculation, allowing unauthenticated attackers to modify order totals after gateway transaction initiation. Attackers can pay a small amount, enlarge the order after gateway capture, and have the system mark the inflated order as fully paid while the gateway captured only the original amount.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00219 12th percentileScored 2026-11-07
Fix Fixed Sylius (Sylius): 2.1.16, 2.2.9

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
Yes
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
SyliusSylius2.0.0 to before 2.1.16; 2.2.0 to before 2.2.92.1.16, 2.2.9Patch availableCNA
  • Sylius VendorSylius Affected 2.0.0 to before 2.1.16; 2.2.0 to before 2.2.9 Fixed in 2.1.16, 2.2.9 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:sylius:sylius:*:*:*:*:*:*:*:*——Sylius
  • cpe:2.3:a:sylius:sylius:*:*:*:*:*:*:*:* Versions — — ·Sylius

Remediation

  • Fix · CNA Sylius (Sylius) Fixed in 2.1.16, 2.2.9

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    Sylius 2.1.16, 2.2.9

    2 records Highest priority Priority HIGH 1 HIGH, 1 LOW

    Other records, highest priority first

    • TI-2026-65007 Sylius 2.x before 2.1.16 and 2.2.9 Arbitrary Payment Action via Shop APIPriority LOW 35
    Show all 2 records →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-100872
  2. 2026-10-03 Alias added: GHSA-2hp7-mfr2-4fg8

References

Patch 2

Advisory 1

Other 2

  • TI-2026-24374 Sylius is Missing Authorization in API v2 Add Item Endpoint CVSS 4.0MEDIUM 6.9
  • TI-2022-08557 Insufficient Session Expiration in Sylius CVSS 3.1HIGH 8.2
  • TI-2026-48275 Sylius Mollie Plugin: Unauthenticated IDOR leaks order token and customer PII CVSS 3.1MEDIUM 6.5
  • TI-2026-24378 Sylius has a DQL Injection via API Order Filters CVSS 3.1MEDIUM 5.3
  • TI-2024-19437 Sylius 1.12.13 is vulnerable to Cross Site Scripting (XSS) via the "Province" field in Address Book. CVSS 3.1MEDIUM 6.4
  • TI-2022-08563 Basic Cross-site Scripting and Unrestricted Upload of File with Dangerous Type in Sylius CVSS 3.1MEDIUM 6.1
See all 37 →

Sources

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