CVE-2026-73848Patch

LOWCVSS 6.9 · MEDIUM

Exploit discussion active in current signal (1 latest mentions)

Immediate actions

Patch affected systems immediately
Hunt for exploitation attempts and persistence artifacts
Increase monitoring for publicly documented tradecraft

Recommended action window: High priority (within 72h)

NVD description

Emlog is an open source website building system. In versions 2.6.29 and prior, tag names in emlog are not HTML-encoded when rendered in the article editor. An attacker can create a tag containing ');alert(document.domain);//. The addslashes() function does not escape HTML entities, so ' is stored as-is. When the browser renders the page, it decodes ' back to a literal single quote before evaluating the JavaScript, breaking out of the string and executing arbitrary code. At time of publication, there are no publicly known patches.

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2.0/ 10 priority

Sources & remediation

Other references

https://github.com/emlog/emlog/security/advisories/GHSA-fv6h-wr92-v4pj

Weakness type (CWE)

CWE-79

Priority

LOW

Exploitation

NONE

PoC

YES

Patch

AVAILABLE

Momentum

NONE

Threat summary

Public PoC is present in monitored signal
Patch or workaround signal is available
1 mentions across 1 observed day

What's happening

PoC mentioned or linked in 1 signal
Patch or workaround mentioned in 1 signal
Technical details provided in 1 signal
1 total mentions across 1 day

Deep dive

Activity timeline1 mentions / 1d

Signal classification1 categories

Patch

1100.0%

Referenced assets1 URL

By indicator

https://www.valtersit.com/cve/CVE-2026-73848

Full discourse1 post

Hugo | DevOps | Cybersecurity 🇱🇻@HugoValters46d
Patch
CVE-2026-73848: XSS in emlog ≤2.6.29 via unescaped tag names in article editor. Attacker executes arbitrary JS via crafted tag—full account takeover risk. CVSS N/A. UNPATCHED. Update or restrict editor access immediately. Details: https://www.valtersit.com/cve/CVE-2026-73848 #cybersecurit #valtersit #CVE #CVEAlert #infosec #SysAdmin #cybersecurity #Linux #devsecops #devops #developer #sysadmin #100daysofcode #git #github #gitlab #redteam #blueteam #ethicalhacker #ethicalhacking #cybersecurityawareness #cybersecurity #cybersecuritynews #cybersecuritytips #python #hacker #linux #kali #ubuntu #debian #ukraine #spain #ireland #unitedkingdom #canada #finland #estonia #lithuania #ireland #hungary #denmark #norway #malta #mexico #switczerland #china #france #germany #docker #kali
Post summary
The message alerts that emlog versions ≤2.6.29 suffer an XSS flaw allowing arbitrary JavaScript execution and account takeover, urging immediate patching or editor access restriction.
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