How severe is CVE-2025-34045?

CVE-2025-34045 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2025-34045 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (90th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-34045?

CVE-2025-34045 affects Weiphp. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-34045?

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.

Does CVE-2025-34045 have an EU (EUVD) identifier?

Yes. CVE-2025-34045 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-19209.

When was CVE-2025-34045 published?

CVE-2025-34045 was published on 2025-06-26 and last updated on 2026-06-17.

CVE-2025-34045

CVE-2025-34045 is a high-severity vulnerability in Weiphp with a CVSS 3.x base score of 7.5. 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 7.5)
CVSS v4: 8.7
EPSS exploit prediction: 4% (90th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-19209
Weakness: CWE-22
Affected product: Weiphp
Published: 2025-06-26
Last modified: 2026-06-17

Description

A path traversal vulnerability exists in WeiPHP 5.0, an open source WeChat public account platform development framework by Shenzhen Yuanmengyun Technology Co., Ltd. The flaw occurs in the picUrl parameter of the /public/index.php/material/Material/_download_imgage endpoint, where insufficient input validation allows unauthenticated remote attackers to perform directory traversal via crafted POST requests. This enables arbitrary file read on the server, potentially exposing sensitive information such as configuration files and source code. Exploitation evidence was observed by the Shadowserver Foundation on 2025-02-05 UTC.

Frequently asked questions

What is CVE-2025-34045?: A path traversal vulnerability exists in WeiPHP 5.0, an open source WeChat public account platform development framework by Shenzhen Yuanmengyun Technology Co., Ltd. The flaw occurs in the picUrl parameter of the /public/index.php/material/Material/_download_imgage endpoint, where insufficient input validation allows unauthenticated remote attackers to perform directory traversal via crafted POST requests. This enables arbitrary file read on the server, potentially exposing sensitive information such as configuration files and source code. Exploitation evidence was observed by the Shadowserver Foundation on 2025-02-05 UTC.
How severe is CVE-2025-34045?: CVE-2025-34045 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2025-34045 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (90th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-34045?: CVE-2025-34045 affects Weiphp. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-34045?: 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.
Does CVE-2025-34045 have an EU (EUVD) identifier?: Yes. CVE-2025-34045 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-19209.
When was CVE-2025-34045 published?: CVE-2025-34045 was published on 2025-06-26 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:weiphp:weiphp:5.0:*:*:*:*:*:*:*

More vulnerabilities in Weiphp

CVE-2020-20300 — Critical (CVSS 9.8): SQL injection vulnerability in the wp_where function in WeiPHP 5.0.
CVE-2025-55849 — High (CVSS 8.4): WeiPHP v5.0 and before is vulnerable to SQL Injection via the SucaiController.class.php file and the cancelTemplatee
CVE-2020-20299 — High (CVSS 7.5): WeiPHP 5.0 does not properly restrict access to pages, related to using POST.

All CVEs affecting Weiphp →

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