Medium Cross-site scripting exploit reference

CVE-2026-85382 — light0011 cms Chapter Content Output oneChapter.tpl htmlspecialchars_decode cross site scripting

A vulnerability was detected in light0011 cms c774dce31c6df0055568a8d5c53d964d99be199d/f72cf46f601efb2a0618c3814cc2f61380b38930. Impacted is the function htmlspecialchars_decode of the file App/Home/View/Default/Chapter/oneChapter.tpl of the component Chapter Content Output. Performing a manipulation of the argument content results in cross site scripting. Remote exploitation of the attack is possible. The exploit is now public and may be used. This product follows a rolling release approach for continuous delivery, so version details for affected or updated releases are not provided. The project was informed of the problem early through an issue report but has not responded yet.

Published Sep 3, 2026 · Updated Oct 15, 2026 · Sources: NIST National Vulnerability Database, CVE Program (cve.org) e CISA ADP · CNA: VulDB

Low

Who exploits it and how urgent it is

A 0–100 score combining confirmed exploitation, ransomware and APT use, public exploits, EPSS and severity.

No exploitation signal in the sources consulted so far.

How the score was calculated

EPSS 0.5% (30-day exploitation probability)+6
Technical severity (medium)+3
CISA SSVC: exploitation "poc"+5

The score orders the patch queue; it does not replace your asset context (internet exposure, criticality, compensating controls).

Triage

Is it exploited, how likely is exploitation, what does it touch, and how severe do the sources call it.

Exploitation

Not confirmed

Not in CISA KEV — an absence of record, not proof it is unexploited.

EPSS FIRST

0.47%

ahead of 39% of scored CVEs · Oct 15, 2026

Affects

Light0011

Cms

CVSS base

4.3

Medium · 2 source(s)

CISA SSVC assessment CISA

Three decision points CISA publishes for the CVEs it assesses (SSVC 2.0.3). A stakeholder decision, not a severity score.

Exploitation

Proof of concept

none · proof-of-concept · active

Automatable

can an attacker script the kill-chain steps

Technical impact

Partial

partial · total control of the vulnerable component

Remediation

Fixes and mitigations documented by the sources — linked to the original advisory.

No fix documented by the sources we poll. That does not mean none exists: check the vendor advisory.

First 24 hours

Ordered from the record’s own fields — exposure first, because you cannot patch what you have not found. A rule-generated starting point.

Identify exposed assets running the affected vendor/product/version combinations (Light0011 Cms).
The attack is network-based and needs no privileges: restrict exposure (ACLs, VPN, WAF) until patched.
No fix documented in the sources: reduce exposure and monitor the vendor advisory.
Exploitation requires user interaction: tighten email/web filtering and warn affected users.
Search available logs for exploit probes matching the vulnerability class (cross-site scripting), errors and authentication anomalies.

Affected scope

Vendor, product and versions as the sources word them.

Vendor	Product	Versions	Status	Source
Light0011	Cms	version c774dce31c6df0055568a8d5c53d964d99be199dversion f72cf46f601efb2a0618c3814cc2f61380b38930	Vulnerable	CVE Program (cve.org) e CISA ADP

Attack characteristics

The CVSS vector, decoded. It describes the attack, not your exposure to it.

Attack vector

Network

Attack complexity

Low

Privileges required

None

User interaction

Required

Scope

Unchanged

Confidentiality

None

Integrity

Low

Availability

None

Every base score collected

Sources score independently and may disagree; each row says who scored it and under which version.

Score	Version	Severity	Expl.	Impact	Scored by
5.3	CVSS 4.0	Medium	—	—	VulDB via CVE Program (cve.org) e CISA ADP
2.1	CVSS 4.0	Low	—	—	cna@vuldb.com via NIST National Vulnerability Database
4.3	CVSS 3.1	Medium	2.8	1.4	cna@vuldb.com via NIST National Vulnerability Database
4.3	CVSS 3.1	Medium	—	—	VulDB via CVE Program (cve.org) e CISA ADP
4.3	CVSS 3.0	Medium	—	—	VulDB via CVE Program (cve.org) e CISA ADP
5.0	CVSS 2.0	Medium	10.0	2.9	cna@vuldb.com via NIST National Vulnerability Database
5.0	CVSS 2.0	Medium	—	—	VulDB via CVE Program (cve.org) e CISA ADP

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N (score shown at the top: cna@vuldb.com)

Weakness MITRE

Weakness class according to MITRE’s CWE catalog.

CWE-79 · Cross-site Scripting (XSS)

Other CVEs with this weakness →

Detection

Read off the CVSS vector and the weakness class. Starting points, not tested rules.

Prioritize edge telemetry for the network-reachable component (proxy, WAF, IDS/IPS).
Monitor CSP violation reports and script payloads in reflected parameters.

web/proxy/WAF logsnetwork IDS/IPSapplication logs

Timeline

What happened to this CVE, newest first.

2026
Affected products added · light0011/cms
Oct 15, 2026 · CVE Program (cve.org) e CISA ADP
SSVC assessment updated
Oct 15, 2026 · CVE Program (cve.org) e CISA ADP
Record published
Oct 15, 2026
CVSS changed · 4.3
Oct 15, 2026 · NIST National Vulnerability Database
Source status changed · → Deferred
Oct 15, 2026 · NIST National Vulnerability Database
Record created in this database
Oct 15, 2026 · NIST National Vulnerability Database
CVE published
Sep 3, 2026 · VulDB

Source activity

Repeated readings are counted rather than listed.

1× Official description updated · Oct 15, 2026 – Oct 15, 2026

References

6 on the record

vuldb.com/submit/894803
third-party-advisory, NIST National Vulnerability Database
github.com/light0011/cms/
product, NIST National Vulnerability Database
github.com/light0011/cms/issues/8
exploit, issue-tracking, NIST National Vulnerability Database
vuldb.com/cve/CVE-2026-85382
third-party-advisory, NIST National Vulnerability Database
vuldb.com/vuln/398536/cti
signature, permissions-required, NIST National Vulnerability Database
vuldb.com/vuln/398536
vdb-entry, technical-description, NIST National Vulnerability Database

Elsewhere on this site

Light0011
every CVE for this vendor

Cross-site scripting
same class

CWE-79
other pages naming this weakness

Related CVEs (same products)

Medium CVE-2026-86308 light0011 cms Debug Mode config.php information disclosure Sep 7, 2026
Medium CVE-2026-86307 light0011 cms cross-site request forgery Sep 7, 2026
High CVE-2026-86305 light0011 cms Upload.class.php upload unrestricted upload Sep 7, 2026
High CVE-2026-86306 light0011 cms Cookie Helper UserModel.class.php improper authentication Sep 7, 2026
High CVE-2026-85379 light0011 cms Query Builder ChapterController.class.php searchChapter sql injection Sep 3, 2026
High CVE-2026-85380 light0011 cms UEditor controller.php catchimage server-side request forgery Sep 3, 2026

Not in any source we poll

Listed rather than left blank: an empty field and an unmeasured one look identical on screen, and only one is a reason to look elsewhere.

No fixed version, patch or mitigation documented.
No confirmed IOCs, IP addresses, domains, file hashes, or malware artifacts supplied.
No organization-specific asset inventory, compensating-control status, or patch deployment evidence supplied.
No exploit packet captures, log samples, or incident case IDs supplied.

Answered from this record

Text assembled only from the fields above — no additional claims.

What should defenders know first?

CVE-2026-85382 is "light0011 cms Chapter Content Output oneChapter.tpl htmlspecialchars_decode cross site scripting", rated Medium. It affects Cms (Light0011); versions are in the scope table. It is not in CISA KEV, which does not rule out exploitation. CVSS 4.3 describes technical severity. EPSS 0.47% estimates the probability of exploitation in 30 days; neither replaces your asset context. First verify whether exposed or business-critical assets run the affected versions, apply vendor fixes or mitigations, and preserve logs for review.

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