How severe is CVE-2021-3110?

CVE-2021-3110 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2021-3110 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 21% (97th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-3110?

CVE-2021-3110 affects Prestashop. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-3110?

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

When was CVE-2021-3110 published?

CVE-2021-3110 was published on 2021-01-20 and last updated on 2026-06-17.

CVE-2021-3110

CVE-2021-3110 is a critical-severity vulnerability in Prestashop with a CVSS 3.x base score of 9.8. Its EPSS exploit-prediction score of 21% places it in the 97th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-89.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 21% (97th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-89
Affected product: Prestashop
Published: 2021-01-20
Last modified: 2026-06-17

Description

The store system in PrestaShop 1.7.7.0 allows time-based boolean SQL injection via the module=productcomments controller=CommentGrade id_products[] parameter.

Frequently asked questions

What is CVE-2021-3110?: The store system in PrestaShop 1.7.7.0 allows time-based boolean SQL injection via the module=productcomments controller=CommentGrade id_products[] parameter.
How severe is CVE-2021-3110?: CVE-2021-3110 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2021-3110 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 21% (97th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-3110?: CVE-2021-3110 affects Prestashop. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-3110?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2021-3110 published?: CVE-2021-3110 was published on 2021-01-20 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:prestashop:prestashop:1.7.7.0:*:*:*:*:*:*:*

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