How severe is CVE-2019-14979?

CVE-2019-14979 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability none.

Is CVE-2019-14979 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (61st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-14979?

CVE-2019-14979 affects Woocommerce Paypal Checkout Payment Gateway. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2019-14979?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2019-14979 published?

CVE-2019-14979 was published on 2019-08-29 and last updated on 2026-06-17.

CVE-2019-14979

CVE-2019-14979 is a medium-severity vulnerability in Woocommerce Paypal Checkout Payment Gateway with a CVSS 3.x base score of 5.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-20.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
CVSS v2: 5.0
EPSS exploit prediction: 1% (61st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Woocommerce Paypal Checkout Payment Gateway
Published: 2019-08-29
Last modified: 2026-06-17

Description

cgi-bin/webscr?cmd=_cart in the WooCommerce PayPal Checkout Payment Gateway plugin 1.6.17 for WordPress allows Parameter Tampering in an amount parameter (such as amount_1), as demonstrated by purchasing an item for lower than the intended price. NOTE: The plugin author states it is true that the amount can be manipulated in the PayPal payment flow. However, the amount is validated against the WooCommerce order total before completing the order, and if it doesn’t match then the order will be left in an “On Hold” state

Frequently asked questions

What is CVE-2019-14979?: cgi-bin/webscr?cmd=_cart in the WooCommerce PayPal Checkout Payment Gateway plugin 1.6.17 for WordPress allows Parameter Tampering in an amount parameter (such as amount_1), as demonstrated by purchasing an item for lower than the intended price. NOTE: The plugin author states it is true that the amount can be manipulated in the PayPal payment flow. However, the amount is validated against the WooCommerce order total before completing the order, and if it doesn’t match then the order will be left in an “On Hold” state
How severe is CVE-2019-14979?: CVE-2019-14979 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability none.
Is CVE-2019-14979 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (61st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-14979?: CVE-2019-14979 affects Woocommerce Paypal Checkout Payment Gateway. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2019-14979?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2019-14979 published?: CVE-2019-14979 was published on 2019-08-29 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:woocommerce:paypal_checkout_payment_gateway:1.6.17:*:*:*:*:wordpress:*:*

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