CVE-2026-73848

MEDIUMPre-NVD 6.96.9
EchelonGraph scoreMEDIUM confidence

“—” beside the score: it is equal to the CVSS score beside it.

This medium-severity CVE scores 6.9 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.4% (36th percentile of EPSS-scored CVEs). No GitHub Security Advisory CVSS is on record for this CVE.

Triggered by: Headline CVSS from a secondary CVSS source
Sources: EPSS, a secondary CVSS source
6.9EG
EchelonGraph verdictMonitorRemediate within your standard update timelines at low or medium mission impact and sooner than that at high (the SSVC decision on this page).
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.4%CVSS: 6.9Exploit: None knownExposed services: Not assessed

No fix is confirmed yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for the fix.

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.

CVSS v3
6.9
EG Score
6.9MEDIUMmedium confidence
EG Risk
46
EG Risk 46/100

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed (value × EchelonGraph’s weight)
Severity69% × 45%
The EG Score, 6.9 of 10.
Exploitation0.4% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability100% × 15%
CISA's SSVC Automatable value: yes (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Attend at high (mission-essential systems).
Exploitation none (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: No fix is confirmed yet. Restrict network exposure of the affected system within your standard update timelines at low or medium mission impact and sooner than that at high, and watch for a fix.
EPSS PROB
0.4%
EPSS %ILE
36th
KEV
Not listed

SSVC (CISA's decision table, applied by EchelonGraph)Track at low or medium mission impact; Attend at high (mission-essential systems).

No fix is confirmed yet. Restrict network exposure of the affected system within your standard update timelines at low or medium mission impact and sooner than that at high, and watch for a fix.

Exploitation none (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

BOD 26-04 (CISA's remediation timeline, Table 1)14 days if the affected system is publicly exposed; 60 days if it is not.

In CISA KEV no (CISA's KEV catalog) · Automatable yes (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

September 4, 2026

Last Modified

September 8, 2026

Advisory Details (1)

Auto-updated Sep 4, 2026
No fix on record yet. Sources: github.
GitHub advisoryMentions a patch (unverified)

Stored XSS via Tag Name in Article Editor · Advisory · emlog/emlog · GitHub

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

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 14× in last 7d / 53× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.

  1. 2026-10-14 16:33 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  2. 2026-10-13 16:35 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  3. 2026-10-12 16:34 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  4. 2026-10-12 15:40 UTCEG score recompute
  5. 2026-10-11 19:26 UTCEG score recompute
  6. 2026-10-11 16:42 UTCEG score recompute
  7. 2026-10-11 14:01 UTCEG score recompute
  8. 2026-10-11 13:49 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  9. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  10. 2026-10-09 23:43 UTCEG score recompute
  11. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  12. 2026-10-09 01:09 UTCEG score recompute
  13. 2026-10-08 17:13 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  14. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  15. 2026-10-06 18:38 UTCEG score recompute
  16. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  17. 2026-10-05 20:04 UTCEG score recompute
  18. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  19. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  20. 2026-10-03 22:56 UTCEG score recompute
  21. 2026-10-03 14:26 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  22. 2026-10-03 00:22 UTCEG score recompute
  23. 2026-10-02 00:30 UTCEG score recompute
  24. 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  25. 2026-10-01 01:14 UTCEG score recompute
Show 46 more
  1. 2026-09-30 02:39 UTCEG score recompute
  2. 2026-09-29 15:24 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  3. 2026-09-28 21:50 UTCEG score recompute
  4. 2026-09-28 13:52 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  5. 2026-09-27 23:16 UTCEG score recompute
  6. 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  7. 2026-09-27 00:42 UTCEG score recompute
  8. 2026-09-26 15:59 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  9. 2026-09-26 02:07 UTCEG score recompute
  10. 2026-09-26 00:28 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  11. 2026-09-24 21:59 UTCEG score recompute
  12. 2026-09-23 23:25 UTCEG score recompute
  13. 2026-09-23 17:54 UTCEPSS rescoreEPSS 0.3% · 25th percentile
  14. 2026-09-23 00:14 UTCEG score recompute
  15. 2026-09-22 01:39 UTCEG score recompute
  16. 2026-09-21 21:09 UTCEPSS rescoreEPSS 0.3% · 25th percentile
  17. 2026-09-21 03:05 UTCEG score recompute
  18. 2026-09-20 20:16 UTCEPSS rescoreEPSS 0.3% · 25th percentile
  19. 2026-09-20 04:30 UTCEG score recompute
  20. 2026-09-19 05:56 UTCEG score recompute
  21. 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.3% · 25th percentile
  22. 2026-09-18 07:23 UTCEG score recompute
  23. 2026-09-17 08:49 UTCEG score recompute
  24. 2026-09-16 14:08 UTCEPSS rescoreEPSS 0.3% · 25th percentile
  25. 2026-09-16 10:15 UTCEG score recompute
  26. 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.3% · 25th percentile
  27. 2026-09-15 11:41 UTCEG score recompute
  28. 2026-09-15 03:12 UTCEPSS rescoreEPSS 0.3% · 25th percentile
  29. 2026-09-14 13:07 UTCEG score recompute
  30. 2026-09-12 15:59 UTCEG score recompute
  31. 2026-09-12 15:02 UTCEPSS rescoreEPSS 0.3% · 25th percentile
  32. 2026-09-11 17:25 UTCEG score recompute
  33. 2026-09-11 14:53 UTCEPSS rescoreEPSS 0.3% · 25th percentile
  34. 2026-09-10 18:19 UTCEG score recompute
  35. 2026-09-10 09:35 UTCEPSS rescoreEPSS 0.3% · 25th percentile
  36. 2026-09-09 19:45 UTCEG score recompute
  37. 2026-09-08 22:01 UTCEPSS rescoreEPSS 0.3% · 24th percentile
  38. 2026-09-08 19:56 UTCEG score recompute
  39. 2026-09-08 18:16 UTCEG score recompute
  40. 2026-09-08 12:59 UTCEG score recompute
  41. 2026-09-06 15:43 UTCEG score recompute
  42. 2026-09-06 13:48 UTCEPSS rescoreEPSS 0.3% · 24th percentile
  43. 2026-09-05 17:09 UTCEG score recompute
  44. 2026-09-04 18:31 UTCEG score recompute
  45. 2026-09-04 17:54 UTCEG score recomputeFirst assessed: 6.9 MEDIUM
  46. 2026-09-04 17:54 UTCMITRE cvelistV5first tracked

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Frequently asked(5)

What is CVE-2026-73848?
CVE-2026-73848 is a medium-severity vulnerability; its CVE record was published on September 4, 2026. 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…
When was the CVE record for CVE-2026-73848 published?
The CVE record for CVE-2026-73848 was published on September 4, 2026. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of September 8, 2026; the record at its source may have been updated since.
Is CVE-2026-73848 actively exploited?
CVE-2026-73848 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.4% probability of exploitation in the next 30 days (36th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-73848?
CVE-2026-73848 has a CVSS base score of 6.9 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-73848?
No fix for CVE-2026-73848 is confirmed yet. Until one is published, restrict network exposure of the affected system — for example, keep it off the internet or limit it to trusted networks — and watch for a fix.

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