CVE-2017-17871

critical

Published 2017-12-27 · Modified 2026-05-13

💬 Discuss on Community ✚ Propose mitigation

CVSS v3

9.8

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS v4 NEW

—

not yet in upstream

VIR risk

10.0

Description

The "JEXTN Question And Answer" extension 3.1.0 for Joomla! has SQL Injection via the an parameter in a view=tags action, or the ques-srch parameter.

Predictions

Exploit likelihood

97%

Patch ETA

—

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

No mitigations published for this CVE yet.

The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.

✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here with source_tier=community-verified.

Exploits

Public proof-of-concept code below. AS-IS, for defenders and authorised testing only.

Exploit-DB

EDB-43329 webapps php verified

Ihsan Sencan · 2017-12-13

Joomla! Component JEXTN Question And Answer 3.1.0 - SQL Injection

Source code queued for fetch — refresh in a moment.

Application impact

Vendor	Product	Versions	Fixed
jextn	jextn_question_and_answer	`3.1.0`

References

CWEs

CWE-89

Community-verified mitigations for this CVE will appear above when contributors publish them.

Verify integrity in audit chain (admin only). AS-IS.