CVE-2026-91075: The Eupago Gateway For Woocommerce WordPress plugin from 4.5.0 through 4.7.5 does not verify the authenticity

Routine

MEDIUM 5.3UPGRADE

CVE-2026-91075 is a medium-severity flaw (CVSS 5.3) affecting eupago gateway for woocommerce. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The Eupago Gateway For Woocommerce WordPress plugin from 4.5.0 through 4.7.5 does not verify the authenticity of incoming payment-confirmation webhook requests in some configurations, allowing unauthenticated attackers to forge a payment confirmation and mark a pending order as paid without paying for it.

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	5.3 (Medium)
EPSS exploit chance	n/a
CISA exploited list	No
Published	2026-11-03
Last modified	2026-11-03

Publisher (CNA): WPScan · Vendor: unknown · Source: CVE Program record (NVD analysis pending)

Last updated 2026-11-03 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-11-03 08:20 UTCPublished CVE record published
2026-11-03 08:20 UTCUpdated Record last modified

unknown eupago gateway for woocommerce UPGRADE

Affected: >= 4.5.0 and <= 4.7.5

Fixed in: newer than 4.7.5

Safe to downgrade to: a release before 4.5.0

1. Check installed version

apt-cache policy eupago-gateway-for-woocommerce || rpm -q eupago-gateway-for-woocommerce || eupago-gateway-for-woocommerce --version

2. UPGRADE to newer than 4.7.5 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade eupago-gateway-for-woocommerce

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade eupago-gateway-for-woocommerce

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

3. If no update is available yet, DOWNGRADE to a release before 4.5.0 (Debian / Ubuntu)

apt-cache madison eupago-gateway-for-woocommerce sudo apt install eupago-gateway-for-woocommerce=<VERSION_BEFORE_4.5.0> sudo apt-mark hold eupago-gateway-for-woocommerce

3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list eupago-gateway-for-woocommerce sudo dnf downgrade eupago-gateway-for-woocommerce-<VERSION_BEFORE_4.5.0> sudo dnf versionlock add eupago-gateway-for-woocommerce

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-91075?

eupago gateway for woocommerce: upgrade to newer than 4.7.5. Exact commands for each OS are on this page.

Is CVE-2026-91075 being exploited?

CVE-2026-91075 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-91075 affect?

CVE-2026-91075 affects eupago gateway for woocommerce. Severity is medium (CVSS 5.3). The Eupago Gateway For Woocommerce WordPress plugin from 4.5.0 through 4.7.5 does not verify the authenticity of incoming payment-confirmation webhook requests in some configurations, allowing unauthenticated attackers to forge a payment co

How urgent is CVE-2026-91075?

Priority 19/100. No elevated risk signals yet.

Software pages

WordPress vulnerabilities · WooCommerce vulnerabilities

References

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