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CVE-2026-45755

Symfony is a PHP framework for web and console applications and a set of reusable PHP components. Prior to 7.4.12 and 8.0.12, MailtrapRequestParser::doParse() received the configured webhook secret but ignored the X-Mt-Signature HMAC header, allowing unauthenticated POST requests to inject forged Mailtrap delivery, bounce, open, click, or spam events. This issue is fixed in versions 7.4.12 and 8.0.12.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:8326865f0d46c7c3d90383bf28ab45a0215bd68a5b726f9d38e68888e85cf7e1
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
2

Preserved source conflicts

No provider value was silently selected as the winner.

affected · 2 assertions

{"product":"mailtrap-mailer","vendor":"/mailtrap-mailer","versions":[{"status":"affected","version":">= 7.2.0, < 7.4.12"},{"status":"affected","version":">= 8.0.0-BETA1, < 8.0.12"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:0c615ecc99f8fadf9fa439831921a2d184a13eac93aa237f3670efb49b8d9ab4 · sha256:fbf4f540278a1175… · /containers/cna/affected/1

{"product":"symfony","vendor":"symfony","versions":[{"status":"affected","version":">= 7.2.0, < 7.4.12"},{"status":"affected","version":">= 8.0.0-BETA1, < 8.0.12"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:0c615ecc99f8fadf9fa439831921a2d184a13eac93aa237f3670efb49b8d9ab4 · sha256:fbf4f540278a1175… · /containers/cna/affected/0
cwe · 2 assertions

{"cweId":"CWE-306","description":"CWE-306: Missing Authentication for Critical Function","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:0c615ecc99f8fadf9fa439831921a2d184a13eac93aa237f3670efb49b8d9ab4 · sha256:fbf4f540278a1175… · /containers/cna/problemTypes/0/descriptions/0

{"cweId":"CWE-347","description":"CWE-347: Improper Verification of Cryptographic Signature","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:0c615ecc99f8fadf9fa439831921a2d184a13eac93aa237f3670efb49b8d9ab4 · sha256:fbf4f540278a1175… · /containers/cna/problemTypes/1/descriptions/0

Affected products and versions

2 source assertions
{"product":"mailtrap-mailer","vendor":"/mailtrap-mailer","versions":[{"status":"affected","version":">= 7.2.0, < 7.4.12"},{"status":"affected","version":">= 8.0.0-BETA1, < 8.0.12"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:0c615ecc99f8fadf9fa439831921a2d184a13eac93aa237f3670efb49b8d9ab4 · sha256:fbf4f540278a1175… · /containers/cna/affected/1
{"product":"symfony","vendor":"symfony","versions":[{"status":"affected","version":">= 7.2.0, < 7.4.12"},{"status":"affected","version":">= 8.0.0-BETA1, < 8.0.12"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:0c615ecc99f8fadf9fa439831921a2d184a13eac93aa237f3670efb49b8d9ab4 · sha256:fbf4f540278a1175… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":6.9,"baseSeverity":"MEDIUM","privilegesRequired":"NONE","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"NONE","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"LOW"},"metric_type":"cvssV4_0"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:0c615ecc99f8fadf9fa439831921a2d184a13eac93aa237f3670efb49b8d9ab4 · sha256:fbf4f540278a1175… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

2 source assertions
{"cweId":"CWE-306","description":"CWE-306: Missing Authentication for Critical Function","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:0c615ecc99f8fadf9fa439831921a2d184a13eac93aa237f3670efb49b8d9ab4 · sha256:fbf4f540278a1175… · /containers/cna/problemTypes/0/descriptions/0
{"cweId":"CWE-347","description":"CWE-347: Improper Verification of Cryptographic Signature","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:0c615ecc99f8fadf9fa439831921a2d184a13eac93aa237f3670efb49b8d9ab4 · sha256:fbf4f540278a1175… · /containers/cna/problemTypes/1/descriptions/0

Source references

4 source assertions
{"name":"https://github.com/symfony/symfony/commit/4e0467e4e182cf2e704a3d9e1bc1a6be65d52ab8","tags":["x_refsource_MISC"],"url":"https://github.com/symfony/symfony/commit/4e0467e4e182cf2e704a3d9e1bc1a6be65d52ab8"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:0c615ecc99f8fadf9fa439831921a2d184a13eac93aa237f3670efb49b8d9ab4 · sha256:fbf4f540278a1175… · /containers/cna/references/1
{"name":"https://github.com/symfony/symfony/releases/tag/v7.4.12","tags":["x_refsource_MISC"],"url":"https://github.com/symfony/symfony/releases/tag/v7.4.12"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:0c615ecc99f8fadf9fa439831921a2d184a13eac93aa237f3670efb49b8d9ab4 · sha256:fbf4f540278a1175… · /containers/cna/references/2
{"name":"https://github.com/symfony/symfony/releases/tag/v8.0.12","tags":["x_refsource_MISC"],"url":"https://github.com/symfony/symfony/releases/tag/v8.0.12"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:0c615ecc99f8fadf9fa439831921a2d184a13eac93aa237f3670efb49b8d9ab4 · sha256:fbf4f540278a1175… · /containers/cna/references/3
{"name":"https://github.com/symfony/symfony/security/advisories/GHSA-59f3-vp2f-mp9w","tags":["x_refsource_CONFIRM"],"url":"https://github.com/symfony/symfony/security/advisories/GHSA-59f3-vp2f-mp9w"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:0c615ecc99f8fadf9fa439831921a2d184a13eac93aa237f3670efb49b8d9ab4 · sha256:fbf4f540278a1175… · /containers/cna/references/0

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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