CVE-2017-20255
CVE-2017-20255 is a high-severity vulnerability with a CVSS 3.x base score of 8.2. 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-89.
Key facts
- Severity: High (CVSS 3.x base score 8.2)
- CVSS v4: 8.8
- EPSS exploit prediction: 0% (25th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2017-18982
- Weakness: CWE-89
- Published:
- Last modified:
Description
Joomla! Component JB Visa 1.0 contains an SQL injection vulnerability that allows unauthenticated attackers to execute arbitrary SQL queries by injecting malicious code through the visatype parameter. Attackers can send GET requests to index.php with the option=com_bookpro and view=popup parameters, injecting SQL commands in the visatype parameter to extract sensitive database information including credentials and table contents.
Frequently asked questions
- What is CVE-2017-20255?
- Joomla! Component JB Visa 1.0 contains an SQL injection vulnerability that allows unauthenticated attackers to execute arbitrary SQL queries by injecting malicious code through the visatype parameter. Attackers can send GET requests to index.php with the option=com_bookpro and view=popup parameters, injecting SQL commands in the visatype parameter to extract sensitive database information including credentials and table contents.
- How severe is CVE-2017-20255?
- CVE-2017-20255 has a CVSS 3.x base score of 8.2, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity low, and availability none.
- Is CVE-2017-20255 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (25th percentile), an estimate of the probability of exploitation in the next 30 days.
- How do I fix CVE-2017-20255?
- 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.
- Does CVE-2017-20255 have an EU (EUVD) identifier?
- Yes. CVE-2017-20255 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2017-18982.
- When was CVE-2017-20255 published?
- CVE-2017-20255 was published on 2026-06-19 and last updated on 2026-06-22.
References
- http://joombooking.com/
- https://extensions.joomla.org/extensions/extension/vertical-markets/booking-a-reservations/jb-visa/
- https://www.exploit-db.com/exploits/43350
- https://www.vulncheck.com/advisories/joomla-component-jb-visa-sql-injection-via-visatype
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