How severe is CVE-2018-18835?

CVE-2018-18835 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-2018-18835 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (73rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-18835?

CVE-2018-18835 affects Doccms. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-18835?

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-2018-18835 published?

CVE-2018-18835 was published on 2018-10-30 and last updated on 2026-06-17.

CVE-2018-18835

CVE-2018-18835 is a critical-severity vulnerability in Doccms 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-94.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 2% (73rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-94
Affected product: Doccms
Published: 2018-10-30
Last modified: 2026-06-17

Description

upload_template() in system/changeskin.php in DocCms 2016.5.12 allows remote attackers to execute arbitrary PHP code via a template file.

Frequently asked questions

What is CVE-2018-18835?: upload_template() in system/changeskin.php in DocCms 2016.5.12 allows remote attackers to execute arbitrary PHP code via a template file.
How severe is CVE-2018-18835?: CVE-2018-18835 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-2018-18835 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (73rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-18835?: CVE-2018-18835 affects Doccms. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-18835?: 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-2018-18835 published?: CVE-2018-18835 was published on 2018-10-30 and last updated on 2026-06-17.

References

http://www.iwantacve.cn/index.php/archives/65/

Affected products (1)

cpe:2.3:a:doccms:doccms:2016.5.12:*:*:*:*:*:*:*

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