How severe is CVE-2017-8102?

CVE-2017-8102 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2017-8102 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (54th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2017-8102?

CVE-2017-8102 affects S9y Serendipity. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2017-8102?

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

When was CVE-2017-8102 published?

CVE-2017-8102 was published on 2017-04-24 and last updated on 2026-06-17.

CVE-2017-8102

CVE-2017-8102 is a medium-severity vulnerability in S9y Serendipity with a CVSS 3.x base score of 5.4. 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 5.4)
CVSS v2: 3.5
EPSS exploit prediction: 1% (54th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: S9y Serendipity
Published: 2017-04-24
Last modified: 2026-06-17

Description

Stored XSS in Serendipity v2.1-rc1 allows an attacker to steal an admin's cookie and other information by composing a new entry as an editor user. This is related to lack of the serendipity_event_xsstrust plugin and a set_config error in that plugin.

Frequently asked questions

What is CVE-2017-8102?: Stored XSS in Serendipity v2.1-rc1 allows an attacker to steal an admin's cookie and other information by composing a new entry as an editor user. This is related to lack of the serendipity_event_xsstrust plugin and a set_config error in that plugin.
How severe is CVE-2017-8102?: CVE-2017-8102 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2017-8102 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (54th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2017-8102?: CVE-2017-8102 affects S9y Serendipity. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2017-8102?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2017-8102 published?: CVE-2017-8102 was published on 2017-04-24 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:s9y:serendipity:2.1:rc1:*:*:*:*:*:*

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