CVE-2021-38753
CVE-2021-38753 is a critical-severity vulnerability in Simple Image Gallery Web App Project Simple Image Gallery Web App 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: 1% (70th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-434
- Affected product: Simple Image Gallery Web App Project Simple Image Gallery Web App
- Published:
- Last modified:
Description
An unrestricted file upload on Simple Image Gallery Web App can be exploited to upload a web shell and executed to gain unauthorized access to the server hosting the web app.
Frequently asked questions
- What is CVE-2021-38753?
- An unrestricted file upload on Simple Image Gallery Web App can be exploited to upload a web shell and executed to gain unauthorized access to the server hosting the web app.
- How severe is CVE-2021-38753?
- CVE-2021-38753 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-2021-38753 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (70th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2021-38753?
- CVE-2021-38753 affects Simple Image Gallery Web App Project Simple Image Gallery Web App. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2021-38753?
- 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-2021-38753 published?
- CVE-2021-38753 was published on 2021-08-16 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:simple_image_gallery_web_app_project:simple_image_gallery_web_app:-:*:*:*:*:*:*:*
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