How severe is CVE-2018-19355?

CVE-2018-19355 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-2018-19355 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (88th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-19355?

CVE-2018-19355 primarily affects Prestashop. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2018-19355?

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-2018-19355 published?

CVE-2018-19355 was published on 2018-11-19 and last updated on 2026-06-17.

CVE-2018-19355

CVE-2018-19355 is a critical-severity vulnerability in Prestashop with a CVSS 3.x base score of 9.8. 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-434.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 3% (88th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-434
Affected product: Prestashop
Published: 2018-11-19
Last modified: 2026-06-17

Description

modules/orderfiles/ajax/upload.php in the Customer Files Upload addon 2018-08-01 for PrestaShop (1.5 through 1.7) allows remote attackers to execute arbitrary code by uploading a php file via modules/orderfiles/upload.php with auptype equal to product (for upload destinations under modules/productfiles), order (for upload destinations under modules/files), or cart (for upload destinations under modules/cartfiles).

Frequently asked questions

What is CVE-2018-19355?: modules/orderfiles/ajax/upload.php in the Customer Files Upload addon 2018-08-01 for PrestaShop (1.5 through 1.7) allows remote attackers to execute arbitrary code by uploading a php file via modules/orderfiles/upload.php with auptype equal to product (for upload destinations under modules/productfiles), order (for upload destinations under modules/files), or cart (for upload destinations under modules/cartfiles).
How severe is CVE-2018-19355?: CVE-2018-19355 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-2018-19355 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (88th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-19355?: CVE-2018-19355 primarily affects Prestashop. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2018-19355?: 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-2018-19355 published?: CVE-2018-19355 was published on 2018-11-19 and last updated on 2026-06-17.

References

https://ia-informatica.com/it/CVE-2018-19355

Affected products (2)

cpe:2.3:a:prestashop:prestashop:*:*:*:*:*:*:*:*
cpe:2.3:a:mypresta:customer_files_upload:2018-08-01:*:*:*:*:prestashop:*:*

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