How severe is CVE-2018-18924?

CVE-2018-18924 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-2018-18924 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 9% (95th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-18924?

CVE-2018-18924 affects Projeqtor. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-18924?

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-2018-18924 published?

CVE-2018-18924 was published on 2018-11-04 and last updated on 2026-06-17.

CVE-2018-18924

CVE-2018-18924 is a high-severity vulnerability in Projeqtor 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-459.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v2: 6.5
EPSS exploit prediction: 9% (95th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-459
Affected product: Projeqtor
Published: 2018-11-04
Last modified: 2026-06-17

Description

The image-upload feature in ProjeQtOr 7.2.5 allows remote attackers to execute arbitrary code by uploading a .shtml file with "#exec cmd" because rejected files remain on the server, with predictable filenames, after a "This file is not a valid image" error message.

Frequently asked questions

What is CVE-2018-18924?: The image-upload feature in ProjeQtOr 7.2.5 allows remote attackers to execute arbitrary code by uploading a .shtml file with "#exec cmd" because rejected files remain on the server, with predictable filenames, after a "This file is not a valid image" error message.
How severe is CVE-2018-18924?: CVE-2018-18924 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-2018-18924 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 9% (95th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-18924?: CVE-2018-18924 affects Projeqtor. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-18924?: 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-2018-18924 published?: CVE-2018-18924 was published on 2018-11-04 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:projeqtor:projeqtor:*:*:*:*:*:*:*:*

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