CVE-2026-100872 (GCVE-0-2026-100872)

Vulnerability from cvelistv5 – Published: 2026-09-27 13:09 – Updated: 2026-09-27 14:29
VLAI
Title
Sylius 2.x before 2.1.16 and 2.2.9 Payment Amount Overwrite
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.
Severity
8.7 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
CWE
  • CWE-345 - Insufficient Verification of Data Authenticity
Assigner
References
Impacted products
Vendor Product Version CPE status
Sylius Sylius Affected: 2.0.0 , < 2.1.16 (semver)
Affected: 2.2.0 , < 2.2.9 (semver)
    cpe:2.3:a:sylius:sylius:*:*:*:*:*:*:*:*
    cpe:2.3:a:sylius:sylius:*:*:*:*:*:*:*:*
Create a notification for this product.
Date Public
2026-09-02 00:00
Credits
leediay153
Show details on NVD website
To clipboard 

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          "name": "GitHub Security Advisory (GHSA-vv4h-q2x8-74g4)",
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          "url": "https://github.com/Sylius/Sylius/pull/19216"
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          "url": "https://github.com/Sylius/Sylius/commit/9e9aeaacbc97b1fc01d573e44d6679194527905d"
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          "url": "https://github.com/Sylius/Sylius"
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    "dateReserved": "2026-09-27T00:20:54.408Z",
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    "state": "PUBLISHED"
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          }
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        "lastModified": "2026-09-27T13:16:38.523",
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                "Recovery": "NOT_DEFINED",
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                "modifiedSubAvailabilityImpact": "NOT_DEFINED",
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                "modifiedSubIntegrityImpact": "NOT_DEFINED",
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                "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
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}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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