How severe is CVE-2018-6879?

CVE-2018-6879 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2018-6879 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-2018-6879?

CVE-2018-6879 affects Website Seller Script Project Website Seller Script. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-6879?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2018-6879 published?

CVE-2018-6879 was published on 2018-04-12 and last updated on 2026-06-17.

CVE-2018-6879

CVE-2018-6879 is a high-severity vulnerability in Website Seller Script Project Website Seller Script with a CVSS 3.x base score of 8.8. 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: High (CVSS 3.x base score 8.8)
CVSS v2: 4.0
EPSS exploit prediction: 1% (61st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Website Seller Script Project Website Seller Script
Published: 2018-04-12
Last modified: 2026-06-17

Description

PHP Scripts Mall Website Seller Script 2.0.3 uses the client side to enforce validation of an e-mail address, which allows remote attackers to modify a registered e-mail address by removing the validation code.

Frequently asked questions

What is CVE-2018-6879?: PHP Scripts Mall Website Seller Script 2.0.3 uses the client side to enforce validation of an e-mail address, which allows remote attackers to modify a registered e-mail address by removing the validation code.
How severe is CVE-2018-6879?: CVE-2018-6879 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2018-6879 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-2018-6879?: CVE-2018-6879 affects Website Seller Script Project Website Seller Script. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-6879?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2018-6879 published?: CVE-2018-6879 was published on 2018-04-12 and last updated on 2026-06-17.

References

https://0day4u.wordpress.com/2018/03/12/website-seller-script-improper-validation-of-email-address/

Affected products (1)

cpe:2.3:a:website_seller_script_project:website_seller_script:2.0.3:*:*:*:*:*:*:*

More vulnerabilities in Website Seller Script Project Website Seller Script

CVE-2018-11501 — High (CVSS 8.8): PHP Scripts Mall Website Seller Script 2.0.3 has CSRF via user_submit.php?upd=2, with resultant XSS.
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CVE-2018-6870 — Medium (CVSS 6.1): Reflected XSS exists in PHP Scripts Mall Website Seller Script 2.0.3 via the Listings Search feature.
CVE-2018-20530 — Medium (CVSS 5.4): PHP Scripts Mall Website Seller Script 2.0.5 has XSS via a Profile field such as Company Address, a related issue to…
CVE-2018-15896 — Medium (CVSS 5.4): PHP Scripts Mall Website Seller Script 2.0.5 has XSS via Personal Address or Company Name.
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