How severe is CVE-2018-11494?

CVE-2018-11494 has a CVSS 3.x base score of 8.0, rated high severity. It is exploitable over network with high attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2018-11494 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (83rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-11494?

CVE-2018-11494 affects Opencart. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-11494?

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-2018-11494 published?

CVE-2018-11494 was published on 2018-05-26 and last updated on 2026-06-17.

CVE-2018-11494

CVE-2018-11494 is a high-severity vulnerability in Opencart with a CVSS 3.x base score of 8.0. 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-22.

Key facts

Severity: High (CVSS 3.x base score 8.0)
CVSS v2: 6.0
EPSS exploit prediction: 2% (83rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-22
Affected product: Opencart
Published: 2018-05-26
Last modified: 2026-06-17

Description

The "program extension upload" feature in OpenCart through 3.0.2.0 has a six-step process (upload, install, unzip, move, xml, remove) that allows attackers to execute arbitrary code if the remove step is skipped, because the attacker can discover a secret temporary directory name (containing 10 random digits) via a directory traversal attack involving language_info['code'].

Frequently asked questions

What is CVE-2018-11494?: The "program extension upload" feature in OpenCart through 3.0.2.0 has a six-step process (upload, install, unzip, move, xml, remove) that allows attackers to execute arbitrary code if the remove step is skipped, because the attacker can discover a secret temporary directory name (containing 10 random digits) via a directory traversal attack involving language_info['code'].
How severe is CVE-2018-11494?: CVE-2018-11494 has a CVSS 3.x base score of 8.0, rated high severity. It is exploitable over network with high attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2018-11494 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (83rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-11494?: CVE-2018-11494 affects Opencart. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-11494?: 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-2018-11494 published?: CVE-2018-11494 was published on 2018-05-26 and last updated on 2026-06-17.

References

http://www.bigdiao.cc/2018/05/24/Opencart-v3-0-2-0/

Affected products (1)

cpe:2.3:a:opencart:opencart:*:*:*:*:*:*:*:*

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