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Vulnerability record · CVE-2017-20268 · published 19 June 2026

CVE-2017-20268: Zcontent zap calendar lite sql injection vulnerability

Zcontent · Zap Calendar Lite

Joomla! Component Zap Calendar Lite 4.3.4 contains an SQL injection vulnerability that allows unauthenticated attackers to execute arbitrary SQL queries by injecting malicious code through the 'eid' parameter. Attackers can send GET requests to the RSVP plugin endpoint with crafted SQL payloads to extract sensitive database information including database names and table structures.

8.8 CVSS 4.0 High EPSS 0.49% · top 60.2% CWE-89 · SQL injection
8.8CVSS 4.0 base score
0.49%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
4References, 1 tagged exploit
21 Aug 2026Last modified by NVD

Description

Joomla! Component Zap Calendar Lite 4.3.4 contains an SQL injection vulnerability that allows unauthenticated attackers to execute arbitrary SQL queries by injecting malicious code through the 'eid' parameter. Attackers can send GET requests to the RSVP plugin endpoint with crafted SQL payloads to extract sensitive database information including database names and table structures.

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://extensions.joomla.org/extensions/extension/calendars-a-events/events/zap-calendar-lite/ Product
https://www.exploit-db.com/exploits/42500 ExploitVDB Entry
https://www.vulncheck.com/advisories/joomla-component-zap-calendar-lite-sql-injection Third Party Advisory
https://zcontent.net/ Product

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Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2017-20268), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.