Interpretation conflict in PostNuke 0.761 and earlier allows remote attackers to conduct cross-site scripting (XSS) attacks via HTML tags with a trailing "<" character, which is interpreted as a ">" character by some web browsers but bypasses the blacklist protection in (1) the pnVarCleanFromInput function in pnAPI.php, (2) the pnSecureInput function in pnAntiCracker.php, and (3) the htmltext parameter in an edituser operation to user.php
Published Feb 20, 2006
2.6
LOWCVSS 2.0
EPSS 2.18%
Description
Interpretation conflict in PostNuke 0.761 and earlier allows remote attackers to conduct cross-site scripting (XSS) attacks via HTML tags with a trailing "<" character, which is interpreted as a ">" character by some web browsers but bypasses the blacklist protection in (1) the pnVarCleanFromInput function in pnAPI.php, (2) the pnSecureInput function in pnAntiCracker.php, and (3) the htmltext parameter in an edituser operation to user.php.
Affected products
No data.
- 0.7
- 0.62
- 0.63
- 0.64
- 0.70
- 0.71
- 0.72
- 0.73
- 0.74
- 0.75
- 0.75_rc3
- 0.76_rc4
- 0.76_rc4a
- 0.76_rc4b
- 0.703
- 0.721
- 0.726.3
- 0.761
- 0.761a
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
AV:N/AC:H/Au:N/C:N/I:P/A:N
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 2, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (14 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 2, 2026 | 2.18% (0.02178) | 81.70th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.13% (0.02128) | 79.47th | v5 (v2026.06.15) |
| Mar 30, 2025 | 7.47% (0.07475) | 90.94th | v4 (v2025.03.14) |
| Mar 29, 2025 | 5.04% (0.05041) | 82.55th | v4 (v2025.03.14) |
| Mar 17, 2025 | 7.47% (0.07475) | 91.13th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.35% (0.00351) | 72.72th | v3 (v2023.03.01) |
| Jun 11, 2024 | 0.35% (0.00351) | 71.89th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.40% (0.00401) | 72.92th | v3 (v2023.03.01) |
| Jan 11, 2024 | 0.40% (0.00401) | 70.88th | v3 (v2023.03.01) |
| May 27, 2023 | 0.35% (0.00349) | 67.65th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.39% (0.00393) | 69.21th | v3 (v2023.03.01) |
| Mar 6, 2023 | 2.94% (0.02945) | 83.56th | v2 (v2022.01.01) |
| Apr 1, 2022 | 2.94% (0.02945) | 81.88th | v2 (v2022.01.01) |
| Feb 4, 2022 | 2.94% (0.02945) | 64.38th | v2 (v2022.01.01) |
References (7)
- http://archives.neohapsis.com/archives/fulldisclosure/2006-02/0469.html mailing-listx_refsource_FULLDISC
- http://news.postnuke.com/index.php?name=News&file=article&sid=2754 x_refsource_CONFIRMPatch
- http://secunia.com/advisories/18937 third-party-advisoryx_refsource_SECUNIAPatchVendor Advisory
- http://securityreason.com/securityalert/454 third-party-advisoryx_refsource_SREASON
- http://www.securityfocus.com/bid/16752 vdb-entryx_refsource_BIDExploitPatch
- http://www.vupen.com/english/advisories/2006/0673 vdb-entryx_refsource_VUPENVendor Advisory
- https://exchange.xforce.ibmcloud.com/vulnerabilities/24823 vdb-entryx_refsource_XF
| Link | Providers | Tags |
|---|---|---|
| http://archives.neohapsis.com/archives/fulldisclosure/2006-02/0469.html | mailing-listx_refsource_FULLDISC | |
| http://news.postnuke.com/index.php?name=News&file=article&sid=2754 | x_refsource_CONFIRMPatch | |
| http://secunia.com/advisories/18937 | third-party-advisoryx_refsource_SECUNIAPatchVendor Advisory | |
| http://securityreason.com/securityalert/454 | third-party-advisoryx_refsource_SREASON | |
| http://www.securityfocus.com/bid/16752 | vdb-entryx_refsource_BIDExploitPatch | |
| http://www.vupen.com/english/advisories/2006/0673 | vdb-entryx_refsource_VUPENVendor Advisory | |
| https://exchange.xforce.ibmcloud.com/vulnerabilities/24823 | vdb-entryx_refsource_XF |
Change history (0)
No recorded changes yet.