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Fencer Intel
medium 5.3

CVE-2026-87841 json

UnitechPay <= 1.0.6.3 - Unauthenticated Order Payment Bypass via Unsigned Webhook

published last mo. modified last mo. also EUVD-2026-95505

cvss
5.3
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.2%
EPSS 0.2% chance of exploitation in 30 days, percentile 7%
public exploits
0
none known

Summary

The UnitechPay WordPress plugin through 1.0.6.3 does not verify the authenticity of the payment notifications it receives, allowing unauthenticated attackers to mark orders placed through it as paid without any payment being made, as well as to force other orders into a failed state.

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CISA SSVC

Exploitation
none
Automatable
yes
Technical impact
partial
Assessed
last mo.

Exploit prediction

0.18% chance of exploitation in the next 30 days, higher than 7% of all scored CVEs (FIRST EPSS, 2026-11-11).

Exploits and checks

  • wpscan.com https://wpscan.com/vulnerability/f04babb4-2dee-4c41-8b4c-0c2428009180/ referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CISA ADP 3.1 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
CNA 3.1 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Affected products

  • Unknown UnitechPay

Classification

Weakness
Technology feeds

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.