How severe is CVE-2023-3155?

CVE-2023-3155 has a CVSS 3.x base score of 7.2, rated high severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2023-3155 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (53rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-3155?

CVE-2023-3155 affects Imagely Nextgen Gallery. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-3155?

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-2023-3155 published?

CVE-2023-3155 was published on 2023-10-16 and last updated on 2026-06-17.

CVE-2023-3155

CVE-2023-3155 is a high-severity vulnerability in Imagely Nextgen Gallery with a CVSS 3.x base score of 7.2. 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-552.

Key facts

Severity: High (CVSS 3.x base score 7.2)
EPSS exploit prediction: 1% (53rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-552
Affected product: Imagely Nextgen Gallery
Published: 2023-10-16
Last modified: 2026-06-17

Description

The WordPress Gallery Plugin WordPress plugin before 3.39 is vulnerable to Arbitrary File Read and Delete due to a lack of input parameter validation in the `gallery_edit` function, allowing an attacker to access arbitrary resources on the server.

Frequently asked questions

What is CVE-2023-3155?: The WordPress Gallery Plugin WordPress plugin before 3.39 is vulnerable to Arbitrary File Read and Delete due to a lack of input parameter validation in the `gallery_edit` function, allowing an attacker to access arbitrary resources on the server.
How severe is CVE-2023-3155?: CVE-2023-3155 has a CVSS 3.x base score of 7.2, rated high severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2023-3155 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (53rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-3155?: CVE-2023-3155 affects Imagely Nextgen Gallery. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-3155?: 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-2023-3155 published?: CVE-2023-3155 was published on 2023-10-16 and last updated on 2026-06-17.

References

https://wpscan.com/vulnerability/5c8473f4-4b52-430b-9140-b81b0a0901da

Affected products (1)

cpe:2.3:a:imagely:nextgen_gallery:*:*:*:*:*:wordpress:*:*

More vulnerabilities in Imagely Nextgen Gallery

CVE-2013-3684 — Critical (CVSS 9.8): NextGEN Gallery plugin before 1.9.13 for WordPress: ngggallery.php file upload
CVE-2019-14314 — Critical (CVSS 9.8): A SQL injection vulnerability exists in the Imagely NextGEN Gallery plugin before 3.2.11 for WordPress. Successful…
CVE-2016-10889 — Critical (CVSS 9.8): The nextgen-gallery plugin before 2.1.57 for WordPress has SQL injection via a gallery name.
CVE-2015-1784 — High (CVSS 8.8): In nextgen-galery wordpress plugin before 2.0.77.3 there are two vulnerabilities which can allow an attacker to gain…
CVE-2020-35942 — High (CVSS 8.8): A Cross-Site Request Forgery (CSRF) issue in the NextGEN Gallery plugin before 3.5.0 for WordPress allows File Upload…
CVE-2015-9228 — High (CVSS 8.8): In post-new.php in the Photocrati NextGEN Gallery plugin 2.1.10 for WordPress, unrestricted file upload is available…

All CVEs affecting Imagely Nextgen Gallery →

Other CWE-552 (Files or Directories Accessible to External Parties) vulnerabilities

CVE-2025-41240 — Critical (CVSS 10.0): Three Bitnami Helm charts mount Kubernetes Secrets under a predictable path (/opt/bitnami/*/secrets) that is located…
CVE-2024-56731 — Critical (CVSS 10.0): Gogs is an open source self-hosted Git service. Prior to version 0.13.3, it's still possible to delete files under the…
CVE-2024-6209 — Critical (CVSS 10.0): Unauthorized file access in WEB Server in ABB ASPECT - Enterprise v3.08.01; NEXUS Series v3.08.01 ; MATRIX Series…
CVE-2025-14771 — Critical (CVSS 9.9): Files or directories accessible to external parties vulnerability in ABB T-MAC Plus. This issue affects T-MAC Plus:…
CVE-2024-39931 — Critical (CVSS 9.9): Gogs through 0.13.0 allows deletion of internal files.
CVE-2021-43821 — Critical (CVSS 9.9): Opencast is an Open Source Lecture Capture & Video Management for Education. Opencast before version 9.10 or 10.6…

Browse all CWE-552 (Files or Directories Accessible to External Parties) vulnerabilities →