How severe is CVE-2021-27308?

CVE-2021-27308 has a CVSS 3.x base score of 4.8, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2021-27308 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (80th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-27308?

CVE-2021-27308 affects 4homepages 4images. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-27308?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2021-27308 published?

CVE-2021-27308 was published on 2021-03-22 and last updated on 2026-06-17.

CVE-2021-27308

CVE-2021-27308 is a medium-severity vulnerability in 4homepages 4images with a CVSS 3.x base score of 4.8. 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-79.

Key facts

Severity: Medium (CVSS 3.x base score 4.8)
CVSS v2: 3.5
EPSS exploit prediction: 2% (80th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: 4homepages 4images
Published: 2021-03-22
Last modified: 2026-06-17

Description

A cross-site scripting (XSS) vulnerability in the admin login panel in 4images version 1.8 allows remote attackers to inject JavaScript via the "redirect" parameter.

Frequently asked questions

What is CVE-2021-27308?: A cross-site scripting (XSS) vulnerability in the admin login panel in 4images version 1.8 allows remote attackers to inject JavaScript via the "redirect" parameter.
How severe is CVE-2021-27308?: CVE-2021-27308 has a CVSS 3.x base score of 4.8, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2021-27308 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (80th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-27308?: CVE-2021-27308 affects 4homepages 4images. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-27308?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-27308 published?: CVE-2021-27308 was published on 2021-03-22 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:4homepages:4images:1.8:*:*:*:*:*:*:*

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CVE-2020-35853 — Medium (CVSS 4.8): 4images Image Gallery Management System 1.7.11 is affected by cross-site scripting (XSS) in the Image URL. This…

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