How severe is CVE-2020-18888?

CVE-2020-18888 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 none, integrity high, and availability none.

Is CVE-2020-18888 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (55th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-18888?

CVE-2020-18888 affects Puppycms. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-18888?

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-2020-18888 published?

CVE-2020-18888 was published on 2021-05-06 and last updated on 2026-06-17.

CVE-2020-18888

CVE-2020-18888 is a high-severity vulnerability in Puppycms 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-862.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 1% (55th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-862
Affected product: Puppycms
Published: 2021-05-06
Last modified: 2026-06-17

Description

Arbitrary File Deletion vulnerability in puppyCMS v5.1 allows remote malicious attackers to delete the file/folder via /admin/functions.php.

Frequently asked questions

What is CVE-2020-18888?: Arbitrary File Deletion vulnerability in puppyCMS v5.1 allows remote malicious attackers to delete the file/folder via /admin/functions.php.
How severe is CVE-2020-18888?: CVE-2020-18888 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 none, integrity high, and availability none.
Is CVE-2020-18888 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (55th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-18888?: CVE-2020-18888 affects Puppycms. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-18888?: 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-2020-18888 published?: CVE-2020-18888 was published on 2021-05-06 and last updated on 2026-06-17.

References

https://github.com/choregus/puppyCMS/issues/15

Affected products (1)

cpe:2.3:a:puppycms:puppycms:5.1:*:*:*:*:*:*:*

More vulnerabilities in Puppycms

CVE-2020-18890 — Critical (CVSS 9.8): Rmote Code Execution (RCE) vulnerability in puppyCMS v5.1 due to insecure permissions, which could let a remote…
CVE-2020-18889 — Medium (CVSS 6.5): Cross Site Request Forgery (CSRF) vulnerability in puppyCMS v5.1 that can change the admin's password via…
CVE-2018-15847 — Medium (CVSS 6.1): An issue was discovered in puppyCMS 5.1. There is an XSS vulnerability via menu.php in the "Add Page/URL" URL link…
CVE-2022-3464 — Medium (CVSS 4.3): A vulnerability classified as problematic has been found in puppyCMS up to 5.1. This affects an unknown part of the…

All CVEs affecting Puppycms →

Other CWE-862 (Missing Authorization) vulnerabilities

CVE-2026-101000 — Critical (CVSS 10.0): A vulnerability was determined in Netcore NBR100V2 1.3.240614.030928. This affects the function uci.apply of the file…
CVE-2026-97360 — Critical (CVSS 10.0): HFS2 version 2.4.0 and earlier contains an unauthenticated arbitrary file access vulnerability that allows…
CVE-2026-65381 — Critical (CVSS 10.0): A validation issue existed in the entitlement verification. This issue was addressed with improved validation of the…
CVE-2026-81648 — Critical (CVSS 10.0): The CryptoPayment Gateway WordPress plugin from 1.2.1 to 1.2.2 does not apply an authorization check on one of its AJAX…
CVE-2026-77770 — Critical (CVSS 10.0): The miniOrange 2FA WordPress plugin before 6.3.1, miniOrange 2FA WordPress plugin before 19.3 does not require a…
CVE-2026-65667 — Critical (CVSS 10.0): Missing authorization in Microsoft Teams allows an unauthorized attacker to elevate privileges over a network.

Browse all CWE-862 (Missing Authorization) vulnerabilities →