How severe is CVE-2018-17836?

CVE-2018-17836 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2018-17836 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-2018-17836?

CVE-2018-17836 affects Jtbc Jtbc Php. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-17836?

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-2018-17836 published?

CVE-2018-17836 was published on 2018-10-01 and last updated on 2026-06-17.

CVE-2018-17836

CVE-2018-17836 is a high-severity vulnerability in Jtbc Jtbc Php with a CVSS 3.x base score of 8.8. 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-22.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v2: 6.5
EPSS exploit prediction: 2% (73rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-22
Affected product: Jtbc Jtbc Php
Published: 2018-10-01
Last modified: 2026-06-17

Description

An issue was discovered in JTBC(PHP) 3.0.1.6. It allows remote attackers to execute arbitrary PHP code by using a /console/file/manage.php?type=action&action=addfile&path=..%2F substring to upload, in conjunction with a multipart/form-data PHP payload.

Frequently asked questions

What is CVE-2018-17836?: An issue was discovered in JTBC(PHP) 3.0.1.6. It allows remote attackers to execute arbitrary PHP code by using a /console/file/manage.php?type=action&action=addfile&path=..%2F substring to upload, in conjunction with a multipart/form-data PHP payload.
How severe is CVE-2018-17836?: CVE-2018-17836 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2018-17836 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-2018-17836?: CVE-2018-17836 affects Jtbc Jtbc Php. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-17836?: 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-2018-17836 published?: CVE-2018-17836 was published on 2018-10-01 and last updated on 2026-06-17.

References

https://github.com/AvaterXXX/JTBC/blob/master/README.md#getshell

Affected products (1)

cpe:2.3:a:jtbc:jtbc_php:3.0.1.6:*:*:*:*:*:*:*

More vulnerabilities in Jtbc Jtbc Php

CVE-2018-19546 — High (CVSS 8.8): JTBC(PHP) 3.0.1.7 has CSRF via the console/xml/manage.php?type=action&action=edit URI, as demonstrated by an XSS…
CVE-2018-19327 — High (CVSS 8.8): An issue was discovered in JTBC(PHP) 3.0.1.7. aboutus/manage.php?type=action&action=add allows CSRF.
CVE-2018-18436 — High (CVSS 8.8): JTBC(PHP) 3.0 allows CSRF for creating an account via the console/account/manage.php?type=action&action=add URI.
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CVE-2019-8433 — High (CVSS 7.5): JTBC(PHP) 3.0.1.8 allows Arbitrary File Upload via the console/#/console/file/manage.php?type=list URI, as demonstrated…
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