How severe is CVE-2018-12580?

CVE-2018-12580 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2018-12580 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (47th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-12580?

CVE-2018-12580 primarily affects Dragonbyte-tech Vbsecurity. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2018-12580?

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

When was CVE-2018-12580 published?

CVE-2018-12580 was published on 2018-06-19 and last updated on 2026-06-17.

CVE-2018-12580

CVE-2018-12580 is a medium-severity vulnerability in Dragonbyte-tech Vbsecurity with a CVSS 3.x base score of 6.1. 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 6.1)
CVSS v2: 4.3
EPSS exploit prediction: 1% (47th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Dragonbyte-tech Vbsecurity
Published: 2018-06-19
Last modified: 2026-06-17

Description

library/DBTech/Security/Action/Sessions.php in DragonByte vBSecurity 3.x through 3.3.0 for vBulletin 3 and vBulletin 4 allows self-XSS via $session['user_agent'] in the "Login Sessions" feature.

Frequently asked questions

What is CVE-2018-12580?: library/DBTech/Security/Action/Sessions.php in DragonByte vBSecurity 3.x through 3.3.0 for vBulletin 3 and vBulletin 4 allows self-XSS via $session['user_agent'] in the "Login Sessions" feature.
How severe is CVE-2018-12580?: CVE-2018-12580 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2018-12580 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (47th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-12580?: CVE-2018-12580 primarily affects Dragonbyte-tech Vbsecurity. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2018-12580?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2018-12580 published?: CVE-2018-12580 was published on 2018-06-19 and last updated on 2026-06-17.

References

https://www.dragonbyte-tech.com/threads/security-bulletin-low-vbsecurity-for-vbulletin-3-vbulletin-4-partial-xss.22534/

Affected products (2)

cpe:2.3:a:dragonbyte-tech:vbsecurity:*:*:*:*:*:vbulletin3:*:*
cpe:2.3:a:dragonbyte-tech:vbsecurity:*:*:*:*:*:vbulletin4:*:*

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