How severe is CVE-2018-16249?

CVE-2018-16249 has a CVSS 3.x base score of 4.8, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2018-16249 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (41st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-16249?

CVE-2018-16249 affects B3log Symphony. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-16249?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2018-16249 published?

CVE-2018-16249 was published on 2019-06-20 and last updated on 2026-06-17.

CVE-2018-16249

CVE-2018-16249 is a medium-severity vulnerability in B3log Symphony with a CVSS 3.x base score of 4.8. 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-79.

Key facts

Severity: Medium (CVSS 3.x base score 4.8)
CVSS v2: 3.5
EPSS exploit prediction: 1% (41st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: B3log Symphony
Published: 2019-06-20
Last modified: 2026-06-17

Description

In Symphony before 3.3.0, there is XSS in the Title under Post. The ID "articleTitle" of this is stored in the "articleTitle" JSON field, and executes a payload when accessing the /member/test/points URI, allowing remote attacks. Any Web script or HTML can be inserted by an admin-authenticated user via a crafted web site name.

Frequently asked questions

What is CVE-2018-16249?: In Symphony before 3.3.0, there is XSS in the Title under Post. The ID "articleTitle" of this is stored in the "articleTitle" JSON field, and executes a payload when accessing the /member/test/points URI, allowing remote attacks. Any Web script or HTML can be inserted by an admin-authenticated user via a crafted web site name.
How severe is CVE-2018-16249?: CVE-2018-16249 has a CVSS 3.x base score of 4.8, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2018-16249 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (41st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-16249?: CVE-2018-16249 affects B3log Symphony. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-16249?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2018-16249 published?: CVE-2018-16249 was published on 2019-06-20 and last updated on 2026-06-17.

References

https://github.com/b3log/symphony/issues/729

Affected products (1)

cpe:2.3:a:b3log:symphony:*:*:*:*:*:*:*:*

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